diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 18:45:38 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 18:45:38 -0800 |
commit | 9b6d351a75dae25430383b29a3764ae7921f6c47 (patch) | |
tree | 605b1ec9f90138553cb7efedf9dbb3df93bef3a8 /drivers | |
parent | dfd10e7ae60c6c1b24b5d601744b4fd1ecab2f31 (diff) | |
parent | 310c85476d5047f5ace4d1c527e1bbbc0c7ad672 (diff) | |
download | op-kernel-dev-9b6d351a75dae25430383b29a3764ae7921f6c47.zip op-kernel-dev-9b6d351a75dae25430383b29a3764ae7921f6c47.tar.gz |
Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC DT updates from Olof Johansson:
"DT and DT-conversion-related changes for various ARM platforms. Most
of these are to enable various devices on various boards, etc, and not
necessarily worth enumerating.
New boards and systems continue to come in as new devicetree files
that don't require corresponding C changes any more, which is
indicating that the system is starting to work fairly well.
A few things worth pointing out:
* ST Ericsson ux500 platforms have made the major push to move over
to fully support the platform with DT
* Renesas platforms continue their conversion over from legacy
platform devices to DT-based for hardware description"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (327 commits)
ARM: dts: SiRF: add pin group for USP0 with only RX or TX frame sync
ARM: dts: SiRF: add lost usp1_uart_nostreamctrl pin group for atlas6
ARM: dts: sirf: add lost minigpsrtc device node
ARM: dts: sirf: add clock, frequence-voltage table for CPU0
ARM: dts: sirf: add lost bus_width, clock and status for sdhci
ARM: dts: sirf: add lost clocks for cphifbg
ARM: dts: socfpga: add pl330 clock
ARM: dts: socfpga: update L2 tag and data latency
arm: sun7i: cubietruck: Enable the i2c controllers
ARM: dts: add support for EXYNOS4412 based TINY4412 board
ARM: dts: Add initial support for Arndale Octa board
ARM: bcm2835: add USB controller to device tree
ARM: dts: MSM8974: Add MMIO architected timer node
ARM: dts: MSM8974: Add restart node
ARM: dts: sun7i: external clock outputs
ARM: dts: sun7i: Change 32768 Hz oscillator node name to clk@N style
ARM: dts: sun7i: Add pin muxing options for clock outputs
ARM: dts: sun7i: Add rtp controller node
ARM: dts: sun5i: Add rtp controller node
ARM: dts: sun4i: Add rtp controller node
...
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/clk/Makefile | 1 | ||||
-rw-r--r-- | drivers/clk/shmobile/Makefile | 7 | ||||
-rw-r--r-- | drivers/clk/shmobile/clk-div6.c | 185 | ||||
-rw-r--r-- | drivers/clk/shmobile/clk-mstp.c | 229 | ||||
-rw-r--r-- | drivers/clk/shmobile/clk-rcar-gen2.c | 298 | ||||
-rw-r--r-- | drivers/clocksource/exynos_mct.c | 4 | ||||
-rw-r--r-- | drivers/clocksource/nomadik-mtu.c | 23 | ||||
-rw-r--r-- | drivers/dma/ste_dma40.c | 4 | ||||
-rw-r--r-- | drivers/pinctrl/pinctrl-nomadik.c | 296 | ||||
-rw-r--r-- | drivers/pinctrl/pinctrl-nomadik.h | 14 |
10 files changed, 982 insertions, 79 deletions
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index ace7309..a3b7c5d 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -36,6 +36,7 @@ obj-$(CONFIG_PLAT_SAMSUNG) += samsung/ obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/ obj-$(CONFIG_COMMON_CLK_AT91) += at91/ +obj-$(CONFIG_ARCH_SHMOBILE_MULTI) += shmobile/ obj-$(CONFIG_X86) += x86/ diff --git a/drivers/clk/shmobile/Makefile b/drivers/clk/shmobile/Makefile new file mode 100644 index 0000000..706adc6 --- /dev/null +++ b/drivers/clk/shmobile/Makefile @@ -0,0 +1,7 @@ +obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o +obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o +obj-$(CONFIG_ARCH_SHMOBILE_MULTI) += clk-div6.o +obj-$(CONFIG_ARCH_SHMOBILE_MULTI) += clk-mstp.o + +# for emply built-in.o +obj-n := dummy diff --git a/drivers/clk/shmobile/clk-div6.c b/drivers/clk/shmobile/clk-div6.c new file mode 100644 index 0000000..aac4756 --- /dev/null +++ b/drivers/clk/shmobile/clk-div6.c @@ -0,0 +1,185 @@ +/* + * r8a7790 Common Clock Framework support + * + * Copyright (C) 2013 Renesas Solutions Corp. + * + * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ + +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/of.h> +#include <linux/of_address.h> + +#define CPG_DIV6_CKSTP BIT(8) +#define CPG_DIV6_DIV(d) ((d) & 0x3f) +#define CPG_DIV6_DIV_MASK 0x3f + +/** + * struct div6_clock - MSTP gating clock + * @hw: handle between common and hardware-specific interfaces + * @reg: IO-remapped register + * @div: divisor value (1-64) + */ +struct div6_clock { + struct clk_hw hw; + void __iomem *reg; + unsigned int div; +}; + +#define to_div6_clock(_hw) container_of(_hw, struct div6_clock, hw) + +static int cpg_div6_clock_enable(struct clk_hw *hw) +{ + struct div6_clock *clock = to_div6_clock(hw); + + clk_writel(CPG_DIV6_DIV(clock->div - 1), clock->reg); + + return 0; +} + +static void cpg_div6_clock_disable(struct clk_hw *hw) +{ + struct div6_clock *clock = to_div6_clock(hw); + + /* DIV6 clocks require the divisor field to be non-zero when stopping + * the clock. + */ + clk_writel(CPG_DIV6_CKSTP | CPG_DIV6_DIV(CPG_DIV6_DIV_MASK), + clock->reg); +} + +static int cpg_div6_clock_is_enabled(struct clk_hw *hw) +{ + struct div6_clock *clock = to_div6_clock(hw); + + return !(clk_readl(clock->reg) & CPG_DIV6_CKSTP); +} + +static unsigned long cpg_div6_clock_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct div6_clock *clock = to_div6_clock(hw); + unsigned int div = (clk_readl(clock->reg) & CPG_DIV6_DIV_MASK) + 1; + + return parent_rate / div; +} + +static unsigned int cpg_div6_clock_calc_div(unsigned long rate, + unsigned long parent_rate) +{ + unsigned int div; + + div = DIV_ROUND_CLOSEST(parent_rate, rate); + return clamp_t(unsigned int, div, 1, 64); +} + +static long cpg_div6_clock_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned int div = cpg_div6_clock_calc_div(rate, *parent_rate); + + return *parent_rate / div; +} + +static int cpg_div6_clock_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct div6_clock *clock = to_div6_clock(hw); + unsigned int div = cpg_div6_clock_calc_div(rate, parent_rate); + + clock->div = div; + + /* Only program the new divisor if the clock isn't stopped. */ + if (!(clk_readl(clock->reg) & CPG_DIV6_CKSTP)) + clk_writel(CPG_DIV6_DIV(clock->div - 1), clock->reg); + + return 0; +} + +static const struct clk_ops cpg_div6_clock_ops = { + .enable = cpg_div6_clock_enable, + .disable = cpg_div6_clock_disable, + .is_enabled = cpg_div6_clock_is_enabled, + .recalc_rate = cpg_div6_clock_recalc_rate, + .round_rate = cpg_div6_clock_round_rate, + .set_rate = cpg_div6_clock_set_rate, +}; + +static void __init cpg_div6_clock_init(struct device_node *np) +{ + struct clk_init_data init; + struct div6_clock *clock; + const char *parent_name; + const char *name; + struct clk *clk; + int ret; + + clock = kzalloc(sizeof(*clock), GFP_KERNEL); + if (!clock) { + pr_err("%s: failed to allocate %s DIV6 clock\n", + __func__, np->name); + return; + } + + /* Remap the clock register and read the divisor. Disabling the + * clock overwrites the divisor, so we need to cache its value for the + * enable operation. + */ + clock->reg = of_iomap(np, 0); + if (clock->reg == NULL) { + pr_err("%s: failed to map %s DIV6 clock register\n", + __func__, np->name); + goto error; + } + + clock->div = (clk_readl(clock->reg) & CPG_DIV6_DIV_MASK) + 1; + + /* Parse the DT properties. */ + ret = of_property_read_string(np, "clock-output-names", &name); + if (ret < 0) { + pr_err("%s: failed to get %s DIV6 clock output name\n", + __func__, np->name); + goto error; + } + + parent_name = of_clk_get_parent_name(np, 0); + if (parent_name == NULL) { + pr_err("%s: failed to get %s DIV6 clock parent name\n", + __func__, np->name); + goto error; + } + + /* Register the clock. */ + init.name = name; + init.ops = &cpg_div6_clock_ops; + init.flags = CLK_IS_BASIC; + init.parent_names = &parent_name; + init.num_parents = 1; + + clock->hw.init = &init; + + clk = clk_register(NULL, &clock->hw); + if (IS_ERR(clk)) { + pr_err("%s: failed to register %s DIV6 clock (%ld)\n", + __func__, np->name, PTR_ERR(clk)); + goto error; + } + + of_clk_add_provider(np, of_clk_src_simple_get, clk); + + return; + +error: + if (clock->reg) + iounmap(clock->reg); + kfree(clock); +} +CLK_OF_DECLARE(cpg_div6_clk, "renesas,cpg-div6-clock", cpg_div6_clock_init); diff --git a/drivers/clk/shmobile/clk-mstp.c b/drivers/clk/shmobile/clk-mstp.c new file mode 100644 index 0000000..e576b60 --- /dev/null +++ b/drivers/clk/shmobile/clk-mstp.c @@ -0,0 +1,229 @@ +/* + * R-Car MSTP clocks + * + * Copyright (C) 2013 Ideas On Board SPRL + * + * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ + +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/spinlock.h> + +/* + * MSTP clocks. We can't use standard gate clocks as we need to poll on the + * status register when enabling the clock. + */ + +#define MSTP_MAX_CLOCKS 32 + +/** + * struct mstp_clock_group - MSTP gating clocks group + * + * @data: clocks in this group + * @smstpcr: module stop control register + * @mstpsr: module stop status register (optional) + * @lock: protects writes to SMSTPCR + */ +struct mstp_clock_group { + struct clk_onecell_data data; + void __iomem *smstpcr; + void __iomem *mstpsr; + spinlock_t lock; +}; + +/** + * struct mstp_clock - MSTP gating clock + * @hw: handle between common and hardware-specific interfaces + * @bit_index: control bit index + * @group: MSTP clocks group + */ +struct mstp_clock { + struct clk_hw hw; + u32 bit_index; + struct mstp_clock_group *group; +}; + +#define to_mstp_clock(_hw) container_of(_hw, struct mstp_clock, hw) + +static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable) +{ + struct mstp_clock *clock = to_mstp_clock(hw); + struct mstp_clock_group *group = clock->group; + u32 bitmask = BIT(clock->bit_index); + unsigned long flags; + unsigned int i; + u32 value; + + spin_lock_irqsave(&group->lock, flags); + + value = clk_readl(group->smstpcr); + if (enable) + value &= ~bitmask; + else + value |= bitmask; + clk_writel(value, group->smstpcr); + + spin_unlock_irqrestore(&group->lock, flags); + + if (!enable || !group->mstpsr) + return 0; + + for (i = 1000; i > 0; --i) { + if (!(clk_readl(group->mstpsr) & bitmask)) + break; + cpu_relax(); + } + + if (!i) { + pr_err("%s: failed to enable %p[%d]\n", __func__, + group->smstpcr, clock->bit_index); + return -ETIMEDOUT; + } + + return 0; +} + +static int cpg_mstp_clock_enable(struct clk_hw *hw) +{ + return cpg_mstp_clock_endisable(hw, true); +} + +static void cpg_mstp_clock_disable(struct clk_hw *hw) +{ + cpg_mstp_clock_endisable(hw, false); +} + +static int cpg_mstp_clock_is_enabled(struct clk_hw *hw) +{ + struct mstp_clock *clock = to_mstp_clock(hw); + struct mstp_clock_group *group = clock->group; + u32 value; + + if (group->mstpsr) + value = clk_readl(group->mstpsr); + else + value = clk_readl(group->smstpcr); + + return !!(value & BIT(clock->bit_index)); +} + +static const struct clk_ops cpg_mstp_clock_ops = { + .enable = cpg_mstp_clock_enable, + .disable = cpg_mstp_clock_disable, + .is_enabled = cpg_mstp_clock_is_enabled, +}; + +static struct clk * __init +cpg_mstp_clock_register(const char *name, const char *parent_name, + unsigned int index, struct mstp_clock_group *group) +{ + struct clk_init_data init; + struct mstp_clock *clock; + struct clk *clk; + + clock = kzalloc(sizeof(*clock), GFP_KERNEL); + if (!clock) { + pr_err("%s: failed to allocate MSTP clock.\n", __func__); + return ERR_PTR(-ENOMEM); + } + + init.name = name; + init.ops = &cpg_mstp_clock_ops; + init.flags = CLK_IS_BASIC; + init.parent_names = &parent_name; + init.num_parents = 1; + + clock->bit_index = index; + clock->group = group; + clock->hw.init = &init; + + clk = clk_register(NULL, &clock->hw); + + if (IS_ERR(clk)) + kfree(clock); + + return clk; +} + +static void __init cpg_mstp_clocks_init(struct device_node *np) +{ + struct mstp_clock_group *group; + struct clk **clks; + unsigned int i; + + group = kzalloc(sizeof(*group), GFP_KERNEL); + clks = kzalloc(MSTP_MAX_CLOCKS * sizeof(*clks), GFP_KERNEL); + if (group == NULL || clks == NULL) { + kfree(group); + kfree(clks); + pr_err("%s: failed to allocate group\n", __func__); + return; + } + + spin_lock_init(&group->lock); + group->data.clks = clks; + + group->smstpcr = of_iomap(np, 0); + group->mstpsr = of_iomap(np, 1); + + if (group->smstpcr == NULL) { + pr_err("%s: failed to remap SMSTPCR\n", __func__); + kfree(group); + kfree(clks); + return; + } + + for (i = 0; i < MSTP_MAX_CLOCKS; ++i) { + const char *parent_name; + const char *name; + u32 clkidx; + int ret; + + /* Skip clocks with no name. */ + ret = of_property_read_string_index(np, "clock-output-names", + i, &name); + if (ret < 0 || strlen(name) == 0) + continue; + + parent_name = of_clk_get_parent_name(np, i); + ret = of_property_read_u32_index(np, "renesas,clock-indices", i, + &clkidx); + if (parent_name == NULL || ret < 0) + break; + + if (clkidx >= MSTP_MAX_CLOCKS) { + pr_err("%s: invalid clock %s %s index %u)\n", + __func__, np->name, name, clkidx); + continue; + } + + clks[clkidx] = cpg_mstp_clock_register(name, parent_name, i, + group); + if (!IS_ERR(clks[clkidx])) { + group->data.clk_num = max(group->data.clk_num, clkidx); + /* + * Register a clkdev to let board code retrieve the + * clock by name and register aliases for non-DT + * devices. + * + * FIXME: Remove this when all devices that require a + * clock will be instantiated from DT. + */ + clk_register_clkdev(clks[clkidx], name, NULL); + } else { + pr_err("%s: failed to register %s %s clock (%ld)\n", + __func__, np->name, name, PTR_ERR(clks[clkidx])); + } + } + + of_clk_add_provider(np, of_clk_src_onecell_get, &group->data); +} +CLK_OF_DECLARE(cpg_mstp_clks, "renesas,cpg-mstp-clocks", cpg_mstp_clocks_init); diff --git a/drivers/clk/shmobile/clk-rcar-gen2.c b/drivers/clk/shmobile/clk-rcar-gen2.c new file mode 100644 index 0000000..a59ec21 --- /dev/null +++ b/drivers/clk/shmobile/clk-rcar-gen2.c @@ -0,0 +1,298 @@ +/* + * rcar_gen2 Core CPG Clocks + * + * Copyright (C) 2013 Ideas On Board SPRL + * + * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ + +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/clk/shmobile.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/math64.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/spinlock.h> + +struct rcar_gen2_cpg { + struct clk_onecell_data data; + spinlock_t lock; + void __iomem *reg; +}; + +#define CPG_SDCKCR 0x00000074 +#define CPG_PLL0CR 0x000000d8 +#define CPG_FRQCRC 0x000000e0 +#define CPG_FRQCRC_ZFC_MASK (0x1f << 8) +#define CPG_FRQCRC_ZFC_SHIFT 8 + +/* ----------------------------------------------------------------------------- + * Z Clock + * + * Traits of this clock: + * prepare - clk_prepare only ensures that parents are prepared + * enable - clk_enable only ensures that parents are enabled + * rate - rate is adjustable. clk->rate = parent->rate * mult / 32 + * parent - fixed parent. No clk_set_parent support + */ + +struct cpg_z_clk { + struct clk_hw hw; + void __iomem *reg; +}; + +#define to_z_clk(_hw) container_of(_hw, struct cpg_z_clk, hw) + +static unsigned long cpg_z_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct cpg_z_clk *zclk = to_z_clk(hw); + unsigned int mult; + unsigned int val; + + val = (clk_readl(zclk->reg) & CPG_FRQCRC_ZFC_MASK) + >> CPG_FRQCRC_ZFC_SHIFT; + mult = 32 - val; + + return div_u64((u64)parent_rate * mult, 32); +} + +static long cpg_z_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + unsigned long prate = *parent_rate; + unsigned int mult; + + if (!prate) + prate = 1; + + mult = div_u64((u64)rate * 32, prate); + mult = clamp(mult, 1U, 32U); + + return *parent_rate / 32 * mult; +} + +static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct cpg_z_clk *zclk = to_z_clk(hw); + unsigned int mult; + u32 val; + + mult = div_u64((u64)rate * 32, parent_rate); + mult = clamp(mult, 1U, 32U); + + val = clk_readl(zclk->reg); + val &= ~CPG_FRQCRC_ZFC_MASK; + val |= (32 - mult) << CPG_FRQCRC_ZFC_SHIFT; + clk_writel(val, zclk->reg); + + return 0; +} + +static const struct clk_ops cpg_z_clk_ops = { + .recalc_rate = cpg_z_clk_recalc_rate, + .round_rate = cpg_z_clk_round_rate, + .set_rate = cpg_z_clk_set_rate, +}; + +static struct clk * __init cpg_z_clk_register(struct rcar_gen2_cpg *cpg) +{ + static const char *parent_name = "pll0"; + struct clk_init_data init; + struct cpg_z_clk *zclk; + struct clk *clk; + + zclk = kzalloc(sizeof(*zclk), GFP_KERNEL); + if (!zclk) + return ERR_PTR(-ENOMEM); + + init.name = "z"; + init.ops = &cpg_z_clk_ops; + init.flags = 0; + init.parent_names = &parent_name; + init.num_parents = 1; + + zclk->reg = cpg->reg + CPG_FRQCRC; + zclk->hw.init = &init; + + clk = clk_register(NULL, &zclk->hw); + if (IS_ERR(clk)) + kfree(zclk); + + return clk; +} + +/* ----------------------------------------------------------------------------- + * CPG Clock Data + */ + +/* + * MD EXTAL PLL0 PLL1 PLL3 + * 14 13 19 (MHz) *1 *1 + *--------------------------------------------------- + * 0 0 0 15 x 1 x172/2 x208/2 x106 + * 0 0 1 15 x 1 x172/2 x208/2 x88 + * 0 1 0 20 x 1 x130/2 x156/2 x80 + * 0 1 1 20 x 1 x130/2 x156/2 x66 + * 1 0 0 26 / 2 x200/2 x240/2 x122 + * 1 0 1 26 / 2 x200/2 x240/2 x102 + * 1 1 0 30 / 2 x172/2 x208/2 x106 + * 1 1 1 30 / 2 x172/2 x208/2 x88 + * + * *1 : Table 7.6 indicates VCO ouput (PLLx = VCO/2) + */ +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \ + (((md) & BIT(13)) >> 12) | \ + (((md) & BIT(19)) >> 19)) +struct cpg_pll_config { + unsigned int extal_div; + unsigned int pll1_mult; + unsigned int pll3_mult; +}; + +static const struct cpg_pll_config cpg_pll_configs[8] __initconst = { + { 1, 208, 106 }, { 1, 208, 88 }, { 1, 156, 80 }, { 1, 156, 66 }, + { 2, 240, 122 }, { 2, 240, 102 }, { 2, 208, 106 }, { 2, 208, 88 }, +}; + +/* SDHI divisors */ +static const struct clk_div_table cpg_sdh_div_table[] = { + { 0, 2 }, { 1, 3 }, { 2, 4 }, { 3, 6 }, + { 4, 8 }, { 5, 12 }, { 6, 16 }, { 7, 18 }, + { 8, 24 }, { 10, 36 }, { 11, 48 }, { 0, 0 }, +}; + +static const struct clk_div_table cpg_sd01_div_table[] = { + { 5, 12 }, { 6, 16 }, { 7, 18 }, { 8, 24 }, + { 10, 36 }, { 11, 48 }, { 12, 10 }, { 0, 0 }, +}; + +/* ----------------------------------------------------------------------------- + * Initialization + */ + +static u32 cpg_mode __initdata; + +static struct clk * __init +rcar_gen2_cpg_register_clock(struct device_node *np, struct rcar_gen2_cpg *cpg, + const struct cpg_pll_config *config, + const char *name) +{ + const struct clk_div_table *table = NULL; + const char *parent_name = "main"; + unsigned int shift; + unsigned int mult = 1; + unsigned int div = 1; + + if (!strcmp(name, "main")) { + parent_name = of_clk_get_parent_name(np, 0); + div = config->extal_div; + } else if (!strcmp(name, "pll0")) { + /* PLL0 is a configurable multiplier clock. Register it as a + * fixed factor clock for now as there's no generic multiplier + * clock implementation and we currently have no need to change + * the multiplier value. + */ + u32 value = clk_readl(cpg->reg + CPG_PLL0CR); + mult = ((value >> 24) & ((1 << 7) - 1)) + 1; + } else if (!strcmp(name, "pll1")) { + mult = config->pll1_mult / 2; + } else if (!strcmp(name, "pll3")) { + mult = config->pll3_mult; + } else if (!strcmp(name, "lb")) { + div = cpg_mode & BIT(18) ? 36 : 24; + } else if (!strcmp(name, "qspi")) { + div = (cpg_mode & (BIT(3) | BIT(2) | BIT(1))) == BIT(2) + ? 16 : 20; + } else if (!strcmp(name, "sdh")) { + table = cpg_sdh_div_table; + shift = 8; + } else if (!strcmp(name, "sd0")) { + table = cpg_sd01_div_table; + shift = 4; + } else if (!strcmp(name, "sd1")) { + table = cpg_sd01_div_table; + shift = 0; + } else if (!strcmp(name, "z")) { + return cpg_z_clk_register(cpg); + } else { + return ERR_PTR(-EINVAL); + } + + if (!table) + return clk_register_fixed_factor(NULL, name, parent_name, 0, + mult, div); + else + return clk_register_divider_table(NULL, name, parent_name, 0, + cpg->reg + CPG_SDCKCR, shift, + 4, 0, table, &cpg->lock); +} + +static void __init rcar_gen2_cpg_clocks_init(struct device_node *np) +{ + const struct cpg_pll_config *config; + struct rcar_gen2_cpg *cpg; + struct clk **clks; + unsigned int i; + int num_clks; + + num_clks = of_property_count_strings(np, "clock-output-names"); + if (num_clks < 0) { + pr_err("%s: failed to count clocks\n", __func__); + return; + } + + cpg = kzalloc(sizeof(*cpg), GFP_KERNEL); + clks = kzalloc(num_clks * sizeof(*clks), GFP_KERNEL); + if (cpg == NULL || clks == NULL) { + /* We're leaking memory on purpose, there's no point in cleaning + * up as the system won't boot anyway. + */ + pr_err("%s: failed to allocate cpg\n", __func__); + return; + } + + spin_lock_init(&cpg->lock); + + cpg->data.clks = clks; + cpg->data.clk_num = num_clks; + + cpg->reg = of_iomap(np, 0); + if (WARN_ON(cpg->reg == NULL)) + return; + + config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; + + for (i = 0; i < num_clks; ++i) { + const char *name; + struct clk *clk; + + of_property_read_string_index(np, "clock-output-names", i, + &name); + + clk = rcar_gen2_cpg_register_clock(np, cpg, config, name); + if (IS_ERR(clk)) + pr_err("%s: failed to register %s %s clock (%ld)\n", + __func__, np->name, name, PTR_ERR(clk)); + else + cpg->data.clks[i] = clk; + } + + of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data); +} +CLK_OF_DECLARE(rcar_gen2_cpg_clks, "renesas,rcar-gen2-cpg-clocks", + rcar_gen2_cpg_clocks_init); + +void __init rcar_gen2_clocks_init(u32 mode) +{ + cpg_mode = mode; + + of_clk_init(NULL); +} diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 62b0de6..48f76bc 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -71,6 +71,10 @@ enum { MCT_L1_IRQ, MCT_L2_IRQ, MCT_L3_IRQ, + MCT_L4_IRQ, + MCT_L5_IRQ, + MCT_L6_IRQ, + MCT_L7_IRQ, MCT_NR_IRQS, }; diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c index 152a3f3..a709cfa 100644 --- a/drivers/clocksource/nomadik-mtu.c +++ b/drivers/clocksource/nomadik-mtu.c @@ -20,7 +20,6 @@ #include <linux/jiffies.h> #include <linux/delay.h> #include <linux/err.h> -#include <linux/platform_data/clocksource-nomadik-mtu.h> #include <linux/sched_clock.h> #include <asm/mach/time.h> @@ -103,7 +102,7 @@ static int nmdk_clkevt_next(unsigned long evt, struct clock_event_device *ev) return 0; } -void nmdk_clkevt_reset(void) +static void nmdk_clkevt_reset(void) { if (clkevt_periodic) { /* Timer: configure load and background-load, and fire it up */ @@ -144,7 +143,7 @@ static void nmdk_clkevt_mode(enum clock_event_mode mode, } } -void nmdk_clksrc_reset(void) +static void nmdk_clksrc_reset(void) { /* Disable */ writel(0, mtu_base + MTU_CR(0)); @@ -192,8 +191,8 @@ static struct irqaction nmdk_timer_irq = { .dev_id = &nmdk_clkevt, }; -static void __init __nmdk_timer_init(void __iomem *base, int irq, - struct clk *pclk, struct clk *clk) +static void __init nmdk_timer_init(void __iomem *base, int irq, + struct clk *pclk, struct clk *clk) { unsigned long rate; @@ -245,18 +244,6 @@ static void __init __nmdk_timer_init(void __iomem *base, int irq, register_current_timer_delay(&mtu_delay_timer); } -void __init nmdk_timer_init(void __iomem *base, int irq) -{ - struct clk *clk0, *pclk0; - - pclk0 = clk_get_sys("mtu0", "apb_pclk"); - BUG_ON(IS_ERR(pclk0)); - clk0 = clk_get_sys("mtu0", NULL); - BUG_ON(IS_ERR(clk0)); - - __nmdk_timer_init(base, irq, pclk0, clk0); -} - static void __init nmdk_timer_of_init(struct device_node *node) { struct clk *pclk; @@ -280,7 +267,7 @@ static void __init nmdk_timer_of_init(struct device_node *node) if (irq <= 0) panic("Can't parse IRQ"); - __nmdk_timer_init(base, irq, pclk, clk); + nmdk_timer_init(base, irq, pclk, clk); } CLOCKSOURCE_OF_DECLARE(nomadik_mtu, "st,nomadik-mtu", nmdk_timer_of_init); diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index b8c031b..00a2de9 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2409,6 +2409,7 @@ static void d40_set_prio_realtime(struct d40_chan *d40c) #define D40_DT_FLAGS_DIR(flags) ((flags >> 1) & 0x1) #define D40_DT_FLAGS_BIG_ENDIAN(flags) ((flags >> 2) & 0x1) #define D40_DT_FLAGS_FIXED_CHAN(flags) ((flags >> 3) & 0x1) +#define D40_DT_FLAGS_HIGH_PRIO(flags) ((flags >> 4) & 0x1) static struct dma_chan *d40_xlate(struct of_phandle_args *dma_spec, struct of_dma *ofdma) @@ -2446,6 +2447,9 @@ static struct dma_chan *d40_xlate(struct of_phandle_args *dma_spec, cfg.use_fixed_channel = true; } + if (D40_DT_FLAGS_HIGH_PRIO(flags)) + cfg.high_priority = true; + return dma_request_channel(cap, stedma40_filter, &cfg); } diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index cd2b1a1..53a1111 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -4,7 +4,7 @@ * Copyright (C) 2008,2009 STMicroelectronics * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it> * Rewritten based on work by Prafulla WADASKAR <prafulla.wadaskar@st.com> - * Copyright (C) 2011 Linus Walleij <linus.walleij@linaro.org> + * Copyright (C) 2011-2013 Linus Walleij <linus.walleij@linaro.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -33,7 +33,6 @@ #include <linux/pinctrl/pinconf.h> /* Since we request GPIOs from ourself */ #include <linux/pinctrl/consumer.h> -#include <linux/platform_data/pinctrl-nomadik.h> #include "pinctrl-nomadik.h" #include "core.h" @@ -45,6 +44,221 @@ * Symbols in this file are called "nmk_gpio" for "nomadik gpio" */ +/* + * pin configurations are represented by 32-bit integers: + * + * bit 0.. 8 - Pin Number (512 Pins Maximum) + * bit 9..10 - Alternate Function Selection + * bit 11..12 - Pull up/down state + * bit 13 - Sleep mode behaviour + * bit 14 - Direction + * bit 15 - Value (if output) + * bit 16..18 - SLPM pull up/down state + * bit 19..20 - SLPM direction + * bit 21..22 - SLPM Value (if output) + * bit 23..25 - PDIS value (if input) + * bit 26 - Gpio mode + * bit 27 - Sleep mode + * + * to facilitate the definition, the following macros are provided + * + * PIN_CFG_DEFAULT - default config (0): + * pull up/down = disabled + * sleep mode = input/wakeup + * direction = input + * value = low + * SLPM direction = same as normal + * SLPM pull = same as normal + * SLPM value = same as normal + * + * PIN_CFG - default config with alternate function + */ + +typedef unsigned long pin_cfg_t; + +#define PIN_NUM_MASK 0x1ff +#define PIN_NUM(x) ((x) & PIN_NUM_MASK) + +#define PIN_ALT_SHIFT 9 +#define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT) +#define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT) +#define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT) +#define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT) +#define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT) +#define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT) + +#define PIN_PULL_SHIFT 11 +#define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT) +#define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT) +#define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT) +#define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT) +#define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT) + +#define PIN_SLPM_SHIFT 13 +#define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT) +#define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT) +#define PIN_SLPM_MAKE_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT) +#define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT) +/* These two replace the above in DB8500v2+ */ +#define PIN_SLPM_WAKEUP_ENABLE (NMK_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT) +#define PIN_SLPM_WAKEUP_DISABLE (NMK_GPIO_SLPM_WAKEUP_DISABLE << PIN_SLPM_SHIFT) +#define PIN_SLPM_USE_MUX_SETTINGS_IN_SLEEP PIN_SLPM_WAKEUP_DISABLE + +#define PIN_SLPM_GPIO PIN_SLPM_WAKEUP_ENABLE /* In SLPM, pin is a gpio */ +#define PIN_SLPM_ALTFUNC PIN_SLPM_WAKEUP_DISABLE /* In SLPM, pin is altfunc */ + +#define PIN_DIR_SHIFT 14 +#define PIN_DIR_MASK (0x1 << PIN_DIR_SHIFT) +#define PIN_DIR(x) (((x) & PIN_DIR_MASK) >> PIN_DIR_SHIFT) +#define PIN_DIR_INPUT (0 << PIN_DIR_SHIFT) +#define PIN_DIR_OUTPUT (1 << PIN_DIR_SHIFT) + +#define PIN_VAL_SHIFT 15 +#define PIN_VAL_MASK (0x1 << PIN_VAL_SHIFT) +#define PIN_VAL(x) (((x) & PIN_VAL_MASK) >> PIN_VAL_SHIFT) +#define PIN_VAL_LOW (0 << PIN_VAL_SHIFT) +#define PIN_VAL_HIGH (1 << PIN_VAL_SHIFT) + +#define PIN_SLPM_PULL_SHIFT 16 +#define PIN_SLPM_PULL_MASK (0x7 << PIN_SLPM_PULL_SHIFT) +#define PIN_SLPM_PULL(x) \ + (((x) & PIN_SLPM_PULL_MASK) >> PIN_SLPM_PULL_SHIFT) +#define PIN_SLPM_PULL_NONE \ + ((1 + NMK_GPIO_PULL_NONE) << PIN_SLPM_PULL_SHIFT) +#define PIN_SLPM_PULL_UP \ + ((1 + NMK_GPIO_PULL_UP) << PIN_SLPM_PULL_SHIFT) +#define PIN_SLPM_PULL_DOWN \ + ((1 + NMK_GPIO_PULL_DOWN) << PIN_SLPM_PULL_SHIFT) + +#define PIN_SLPM_DIR_SHIFT 19 +#define PIN_SLPM_DIR_MASK (0x3 << PIN_SLPM_DIR_SHIFT) +#define PIN_SLPM_DIR(x) \ + (((x) & PIN_SLPM_DIR_MASK) >> PIN_SLPM_DIR_SHIFT) +#define PIN_SLPM_DIR_INPUT ((1 + 0) << PIN_SLPM_DIR_SHIFT) +#define PIN_SLPM_DIR_OUTPUT ((1 + 1) << PIN_SLPM_DIR_SHIFT) + +#define PIN_SLPM_VAL_SHIFT 21 +#define PIN_SLPM_VAL_MASK (0x3 << PIN_SLPM_VAL_SHIFT) +#define PIN_SLPM_VAL(x) \ + (((x) & PIN_SLPM_VAL_MASK) >> PIN_SLPM_VAL_SHIFT) +#define PIN_SLPM_VAL_LOW ((1 + 0) << PIN_SLPM_VAL_SHIFT) +#define PIN_SLPM_VAL_HIGH ((1 + 1) << PIN_SLPM_VAL_SHIFT) + +#define PIN_SLPM_PDIS_SHIFT 23 +#define PIN_SLPM_PDIS_MASK (0x3 << PIN_SLPM_PDIS_SHIFT) +#define PIN_SLPM_PDIS(x) \ + (((x) & PIN_SLPM_PDIS_MASK) >> PIN_SLPM_PDIS_SHIFT) +#define PIN_SLPM_PDIS_NO_CHANGE (0 << PIN_SLPM_PDIS_SHIFT) +#define PIN_SLPM_PDIS_DISABLED (1 << PIN_SLPM_PDIS_SHIFT) +#define PIN_SLPM_PDIS_ENABLED (2 << PIN_SLPM_PDIS_SHIFT) + +#define PIN_LOWEMI_SHIFT 25 +#define PIN_LOWEMI_MASK (0x1 << PIN_LOWEMI_SHIFT) +#define PIN_LOWEMI(x) (((x) & PIN_LOWEMI_MASK) >> PIN_LOWEMI_SHIFT) +#define PIN_LOWEMI_DISABLED (0 << PIN_LOWEMI_SHIFT) +#define PIN_LOWEMI_ENABLED (1 << PIN_LOWEMI_SHIFT) + +#define PIN_GPIOMODE_SHIFT 26 +#define PIN_GPIOMODE_MASK (0x1 << PIN_GPIOMODE_SHIFT) +#define PIN_GPIOMODE(x) (((x) & PIN_GPIOMODE_MASK) >> PIN_GPIOMODE_SHIFT) +#define PIN_GPIOMODE_DISABLED (0 << PIN_GPIOMODE_SHIFT) +#define PIN_GPIOMODE_ENABLED (1 << PIN_GPIOMODE_SHIFT) + +#define PIN_SLEEPMODE_SHIFT 27 +#define PIN_SLEEPMODE_MASK (0x1 << PIN_SLEEPMODE_SHIFT) +#define PIN_SLEEPMODE(x) (((x) & PIN_SLEEPMODE_MASK) >> PIN_SLEEPMODE_SHIFT) +#define PIN_SLEEPMODE_DISABLED (0 << PIN_SLEEPMODE_SHIFT) +#define PIN_SLEEPMODE_ENABLED (1 << PIN_SLEEPMODE_SHIFT) + + +/* Shortcuts. Use these instead of separate DIR, PULL, and VAL. */ +#define PIN_INPUT_PULLDOWN (PIN_DIR_INPUT | PIN_PULL_DOWN) +#define PIN_INPUT_PULLUP (PIN_DIR_INPUT | PIN_PULL_UP) +#define PIN_INPUT_NOPULL (PIN_DIR_INPUT | PIN_PULL_NONE) +#define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW) +#define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH) + +#define PIN_SLPM_INPUT_PULLDOWN (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_DOWN) +#define PIN_SLPM_INPUT_PULLUP (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_UP) +#define PIN_SLPM_INPUT_NOPULL (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_NONE) +#define PIN_SLPM_OUTPUT_LOW (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_LOW) +#define PIN_SLPM_OUTPUT_HIGH (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_HIGH) + +#define PIN_CFG_DEFAULT (0) + +#define PIN_CFG(num, alt) \ + (PIN_CFG_DEFAULT |\ + (PIN_NUM(num) | PIN_##alt)) + +#define PIN_CFG_INPUT(num, alt, pull) \ + (PIN_CFG_DEFAULT |\ + (PIN_NUM(num) | PIN_##alt | PIN_INPUT_##pull)) + +#define PIN_CFG_OUTPUT(num, alt, val) \ + (PIN_CFG_DEFAULT |\ + (PIN_NUM(num) | PIN_##alt | PIN_OUTPUT_##val)) + +/* + * "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving + * the "gpio" namespace for generic and cross-machine functions + */ + +#define GPIO_BLOCK_SHIFT 5 +#define NMK_GPIO_PER_CHIP (1 << GPIO_BLOCK_SHIFT) + +/* Register in the logic block */ +#define NMK_GPIO_DAT 0x00 +#define NMK_GPIO_DATS 0x04 +#define NMK_GPIO_DATC 0x08 +#define NMK_GPIO_PDIS 0x0c +#define NMK_GPIO_DIR 0x10 +#define NMK_GPIO_DIRS 0x14 +#define NMK_GPIO_DIRC 0x18 +#define NMK_GPIO_SLPC 0x1c +#define NMK_GPIO_AFSLA 0x20 +#define NMK_GPIO_AFSLB 0x24 +#define NMK_GPIO_LOWEMI 0x28 + +#define NMK_GPIO_RIMSC 0x40 +#define NMK_GPIO_FIMSC 0x44 +#define NMK_GPIO_IS 0x48 +#define NMK_GPIO_IC 0x4c +#define NMK_GPIO_RWIMSC 0x50 +#define NMK_GPIO_FWIMSC 0x54 +#define NMK_GPIO_WKS 0x58 +/* These appear in DB8540 and later ASICs */ +#define NMK_GPIO_EDGELEVEL 0x5C +#define NMK_GPIO_LEVEL 0x60 + + +/* Pull up/down values */ +enum nmk_gpio_pull { + NMK_GPIO_PULL_NONE, + NMK_GPIO_PULL_UP, + NMK_GPIO_PULL_DOWN, +}; + +/* Sleep mode */ +enum nmk_gpio_slpm { + NMK_GPIO_SLPM_INPUT, + NMK_GPIO_SLPM_WAKEUP_ENABLE = NMK_GPIO_SLPM_INPUT, + NMK_GPIO_SLPM_NOCHANGE, + NMK_GPIO_SLPM_WAKEUP_DISABLE = NMK_GPIO_SLPM_NOCHANGE, +}; + +/* + * Platform data to register a block: only the initial gpio/irq number. + */ +struct nmk_gpio_platform_data { + char *name; + int first_gpio; + int first_irq; + int num_gpio; + u32 (*get_secondary_status)(unsigned int bank); + void (*set_ioforce)(bool enable); + bool supports_sleepmode; +}; + struct nmk_gpio_chip { struct gpio_chip chip; struct irq_domain *domain; @@ -1026,7 +1240,7 @@ static const struct irq_domain_ops nmk_gpio_irq_simple_ops = { static int nmk_gpio_probe(struct platform_device *dev) { - struct nmk_gpio_platform_data *pdata = dev->dev.platform_data; + struct nmk_gpio_platform_data *pdata; struct device_node *np = dev->dev.of_node; struct nmk_gpio_chip *nmk_chip; struct gpio_chip *chip; @@ -1034,32 +1248,24 @@ static int nmk_gpio_probe(struct platform_device *dev) struct clk *clk; int secondary_irq; void __iomem *base; - int irq_start = 0; int irq; int ret; - if (!pdata && !np) { - dev_err(&dev->dev, "No platform data or device tree found\n"); - return -ENODEV; - } - - if (np) { - pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return -ENOMEM; - - if (of_get_property(np, "st,supports-sleepmode", NULL)) - pdata->supports_sleepmode = true; + pdata = devm_kzalloc(&dev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; - if (of_property_read_u32(np, "gpio-bank", &dev->id)) { - dev_err(&dev->dev, "gpio-bank property not found\n"); - return -EINVAL; - } + if (of_get_property(np, "st,supports-sleepmode", NULL)) + pdata->supports_sleepmode = true; - pdata->first_gpio = dev->id * NMK_GPIO_PER_CHIP; - pdata->num_gpio = NMK_GPIO_PER_CHIP; + if (of_property_read_u32(np, "gpio-bank", &dev->id)) { + dev_err(&dev->dev, "gpio-bank property not found\n"); + return -EINVAL; } + pdata->first_gpio = dev->id * NMK_GPIO_PER_CHIP; + pdata->num_gpio = NMK_GPIO_PER_CHIP; + irq = platform_get_irq(dev, 0); if (irq < 0) return irq; @@ -1107,10 +1313,7 @@ static int nmk_gpio_probe(struct platform_device *dev) clk_enable(nmk_chip->clk); nmk_chip->lowemi = readl_relaxed(nmk_chip->addr + NMK_GPIO_LOWEMI); clk_disable(nmk_chip->clk); - -#ifdef CONFIG_OF_GPIO chip->of_node = np; -#endif ret = gpiochip_add(&nmk_chip->chip); if (ret) @@ -1122,10 +1325,8 @@ static int nmk_gpio_probe(struct platform_device *dev) platform_set_drvdata(dev, nmk_chip); - if (!np) - irq_start = pdata->first_irq; nmk_chip->domain = irq_domain_add_simple(np, - NMK_GPIO_PER_CHIP, irq_start, + NMK_GPIO_PER_CHIP, 0, &nmk_gpio_irq_simple_ops, nmk_chip); if (!nmk_chip->domain) { dev_err(&dev->dev, "failed to create irqdomain\n"); @@ -1858,11 +2059,10 @@ static int nmk_pinctrl_resume(struct platform_device *pdev) static int nmk_pinctrl_probe(struct platform_device *pdev) { - const struct platform_device_id *platid = platform_get_device_id(pdev); + const struct of_device_id *match; struct device_node *np = pdev->dev.of_node; struct device_node *prcm_np; struct nmk_pinctrl *npct; - struct resource *res; unsigned int version = 0; int i; @@ -1870,16 +2070,10 @@ static int nmk_pinctrl_probe(struct platform_device *pdev) if (!npct) return -ENOMEM; - if (platid) - version = platid->driver_data; - else if (np) { - const struct of_device_id *match; - - match = of_match_device(nmk_pinctrl_match, &pdev->dev); - if (!match) - return -ENODEV; - version = (unsigned int) match->data; - } + match = of_match_device(nmk_pinctrl_match, &pdev->dev); + if (!match) + return -ENODEV; + version = (unsigned int) match->data; /* Poke in other ASIC variants here */ if (version == PINCTRL_NMK_STN8815) @@ -1889,17 +2083,9 @@ static int nmk_pinctrl_probe(struct platform_device *pdev) if (version == PINCTRL_NMK_DB8540) nmk_pinctrl_db8540_init(&npct->soc); - if (np) { - prcm_np = of_parse_phandle(np, "prcm", 0); - if (prcm_np) - npct->prcm_base = of_iomap(prcm_np, 0); - } - - /* Allow platform passed information to over-write DT. */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res) - npct->prcm_base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); + prcm_np = of_parse_phandle(np, "prcm", 0); + if (prcm_np) + npct->prcm_base = of_iomap(prcm_np, 0); if (!npct->prcm_base) { if (version == PINCTRL_NMK_STN8815) { dev_info(&pdev->dev, @@ -1958,13 +2144,6 @@ static struct platform_driver nmk_gpio_driver = { .probe = nmk_gpio_probe, }; -static const struct platform_device_id nmk_pinctrl_id[] = { - { "pinctrl-stn8815", PINCTRL_NMK_STN8815 }, - { "pinctrl-db8500", PINCTRL_NMK_DB8500 }, - { "pinctrl-db8540", PINCTRL_NMK_DB8540 }, - { } -}; - static struct platform_driver nmk_pinctrl_driver = { .driver = { .owner = THIS_MODULE, @@ -1972,7 +2151,6 @@ static struct platform_driver nmk_pinctrl_driver = { .of_match_table = nmk_pinctrl_match, }, .probe = nmk_pinctrl_probe, - .id_table = nmk_pinctrl_id, #ifdef CONFIG_PM .suspend = nmk_pinctrl_suspend, .resume = nmk_pinctrl_resume, diff --git a/drivers/pinctrl/pinctrl-nomadik.h b/drivers/pinctrl/pinctrl-nomadik.h index bcd4191..d8215f1 100644 --- a/drivers/pinctrl/pinctrl-nomadik.h +++ b/drivers/pinctrl/pinctrl-nomadik.h @@ -1,13 +1,23 @@ #ifndef PINCTRL_PINCTRL_NOMADIK_H #define PINCTRL_PINCTRL_NOMADIK_H -#include <linux/platform_data/pinctrl-nomadik.h> - /* Package definitions */ #define PINCTRL_NMK_STN8815 0 #define PINCTRL_NMK_DB8500 1 #define PINCTRL_NMK_DB8540 2 +/* Alternate functions: function C is set in hw by setting both A and B */ +#define NMK_GPIO_ALT_GPIO 0 +#define NMK_GPIO_ALT_A 1 +#define NMK_GPIO_ALT_B 2 +#define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B) + +#define NMK_GPIO_ALT_CX_SHIFT 2 +#define NMK_GPIO_ALT_C1 ((1<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) +#define NMK_GPIO_ALT_C2 ((2<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) +#define NMK_GPIO_ALT_C3 ((3<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) +#define NMK_GPIO_ALT_C4 ((4<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) + #define PRCM_GPIOCR_ALTCX(pin_num,\ altc1_used, altc1_ri, altc1_cb,\ altc2_used, altc2_ri, altc2_cb,\ |