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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-07 20:27:30 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-07 20:27:30 -0700 |
commit | 1a5700bc2d10cd379a795fd2bb377a190af5acd4 (patch) | |
tree | e9f754cbc34020dd23c1d2e3e45fb6890ba7593c /drivers/clk/qcom/gcc-msm8974.c | |
parent | a68a7509d3af8ee458d32b2416b0c2aaf2a4a7e3 (diff) | |
parent | 3cbcb16095f916f50a5a55066fcc4be06946ce1e (diff) | |
download | op-kernel-dev-1a5700bc2d10cd379a795fd2bb377a190af5acd4.zip op-kernel-dev-1a5700bc2d10cd379a795fd2bb377a190af5acd4.tar.gz |
Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux into next
Pull clock framework updates from Mike Turquette:
"The clock framework changes for 3.16 are pretty typical: mostly clock
driver additions and fixes. There are additions to the clock core
code for some of the basic types (e.g. the common divider type has
some fixes and featured added to it).
One minor annoyance is a last-minute dependency that wasn't handled
quite right. Commit ba0fae3b06a6 ("clk: berlin: add core clock driver
for BG2/BG2CD") in this pull request depends on
include/dt-bindings/clock/berlin2.h, which is already in your tree via
the arm-soc pull request. Building for the berlin platform will break
when the clk tree is built on it's own, but merged into your master
branch everything should be fine"
* tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux: (75 commits)
mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs
clk: export __clk_round_rate for providers
clk: versatile: free icst on error return
clk: qcom: Return error pointers for unimplemented clocks
clk: qcom: Support msm8974pro global clock control hardware
clk: qcom: Properly support display clocks on msm8974
clk: qcom: Support display RCG clocks
clk: qcom: Return highest rate when round_rate() exceeds plan
clk: qcom: Fix mmcc-8974's PLL configurations
clk: qcom: Fix clk_rcg2_is_enabled() check
clk: berlin: add core clock driver for BG2Q
clk: berlin: add core clock driver for BG2/BG2CD
clk: berlin: add driver for BG2x complex divider cells
clk: berlin: add driver for BG2x simple PLLs
clk: berlin: add driver for BG2x audio/video PLL
clk: st: Terminate of match table
clk/exynos4: Fix compilation warning
ARM: shmobile: r8a7779: Add clock index macros for DT sources
clk: divider: Fix overflow in clk_divider_bestdiv
clk: u300: Terminate of match table
...
Diffstat (limited to 'drivers/clk/qcom/gcc-msm8974.c')
-rw-r--r-- | drivers/clk/qcom/gcc-msm8974.c | 207 |
1 files changed, 136 insertions, 71 deletions
diff --git a/drivers/clk/qcom/gcc-msm8974.c b/drivers/clk/qcom/gcc-msm8974.c index 51d457e..7af7c18 100644 --- a/drivers/clk/qcom/gcc-msm8974.c +++ b/drivers/clk/qcom/gcc-msm8974.c @@ -25,6 +25,7 @@ #include <dt-bindings/clock/qcom,gcc-msm8974.h> #include <dt-bindings/reset/qcom,gcc-msm8974.h> +#include "common.h" #include "clk-regmap.h" #include "clk-pll.h" #include "clk-rcg.h" @@ -34,6 +35,7 @@ #define P_XO 0 #define P_GPLL0 1 #define P_GPLL1 1 +#define P_GPLL4 2 static const u8 gcc_xo_gpll0_map[] = { [P_XO] = 0, @@ -45,6 +47,18 @@ static const char *gcc_xo_gpll0[] = { "gpll0_vote", }; +static const u8 gcc_xo_gpll0_gpll4_map[] = { + [P_XO] = 0, + [P_GPLL0] = 1, + [P_GPLL4] = 5, +}; + +static const char *gcc_xo_gpll0_gpll4[] = { + "xo", + "gpll0_vote", + "gpll4_vote", +}; + #define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) } static struct clk_pll gpll0 = { @@ -137,6 +151,33 @@ static struct clk_regmap gpll1_vote = { }, }; +static struct clk_pll gpll4 = { + .l_reg = 0x1dc4, + .m_reg = 0x1dc8, + .n_reg = 0x1dcc, + .config_reg = 0x1dd4, + .mode_reg = 0x1dc0, + .status_reg = 0x1ddc, + .status_bit = 17, + .clkr.hw.init = &(struct clk_init_data){ + .name = "gpll4", + .parent_names = (const char *[]){ "xo" }, + .num_parents = 1, + .ops = &clk_pll_ops, + }, +}; + +static struct clk_regmap gpll4_vote = { + .enable_reg = 0x1480, + .enable_mask = BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "gpll4_vote", + .parent_names = (const char *[]){ "gpll4" }, + .num_parents = 1, + .ops = &clk_pll_vote_ops, + }, +}; + static const struct freq_tbl ftbl_gcc_usb30_master_clk[] = { F(125000000, P_GPLL0, 1, 5, 24), { } @@ -811,18 +852,33 @@ static const struct freq_tbl ftbl_gcc_sdcc1_4_apps_clk[] = { { } }; +static const struct freq_tbl ftbl_gcc_sdcc1_apps_clk_pro[] = { + F(144000, P_XO, 16, 3, 25), + F(400000, P_XO, 12, 1, 4), + F(20000000, P_GPLL0, 15, 1, 2), + F(25000000, P_GPLL0, 12, 1, 2), + F(50000000, P_GPLL0, 12, 0, 0), + F(100000000, P_GPLL0, 6, 0, 0), + F(192000000, P_GPLL4, 4, 0, 0), + F(200000000, P_GPLL0, 3, 0, 0), + F(384000000, P_GPLL4, 2, 0, 0), + { } +}; + +static struct clk_init_data sdcc1_apps_clk_src_init = { + .name = "sdcc1_apps_clk_src", + .parent_names = gcc_xo_gpll0, + .num_parents = 2, + .ops = &clk_rcg2_ops, +}; + static struct clk_rcg2 sdcc1_apps_clk_src = { .cmd_rcgr = 0x04d0, .mnd_width = 8, .hid_width = 5, .parent_map = gcc_xo_gpll0_map, .freq_tbl = ftbl_gcc_sdcc1_4_apps_clk, - .clkr.hw.init = &(struct clk_init_data){ - .name = "sdcc1_apps_clk_src", - .parent_names = gcc_xo_gpll0, - .num_parents = 2, - .ops = &clk_rcg2_ops, - }, + .clkr.hw.init = &sdcc1_apps_clk_src_init, }; static struct clk_rcg2 sdcc2_apps_clk_src = { @@ -1340,7 +1396,7 @@ static struct clk_branch gcc_blsp1_uart6_apps_clk = { }; static struct clk_branch gcc_blsp2_ahb_clk = { - .halt_reg = 0x05c4, + .halt_reg = 0x0944, .halt_check = BRANCH_HALT_VOTED, .clkr = { .enable_reg = 0x1484, @@ -1994,6 +2050,38 @@ static struct clk_branch gcc_sdcc1_apps_clk = { }, }; +static struct clk_branch gcc_sdcc1_cdccal_ff_clk = { + .halt_reg = 0x04e8, + .clkr = { + .enable_reg = 0x04e8, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gcc_sdcc1_cdccal_ff_clk", + .parent_names = (const char *[]){ + "xo" + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + +static struct clk_branch gcc_sdcc1_cdccal_sleep_clk = { + .halt_reg = 0x04e4, + .clkr = { + .enable_reg = 0x04e4, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "gcc_sdcc1_cdccal_sleep_clk", + .parent_names = (const char *[]){ + "sleep_clk_src" + }, + .num_parents = 1, + .ops = &clk_branch2_ops, + }, + }, +}; + static struct clk_branch gcc_sdcc2_ahb_clk = { .halt_reg = 0x0508, .clkr = { @@ -2483,6 +2571,10 @@ static struct clk_regmap *gcc_msm8974_clocks[] = { [GCC_USB_HSIC_IO_CAL_SLEEP_CLK] = &gcc_usb_hsic_io_cal_sleep_clk.clkr, [GCC_USB_HSIC_SYSTEM_CLK] = &gcc_usb_hsic_system_clk.clkr, [GCC_MMSS_GPLL0_CLK_SRC] = &gcc_mmss_gpll0_clk_src, + [GPLL4] = NULL, + [GPLL4_VOTE] = NULL, + [GCC_SDCC1_CDCCAL_SLEEP_CLK] = NULL, + [GCC_SDCC1_CDCCAL_FF_CLK] = NULL, }; static const struct qcom_reset_map gcc_msm8974_resets[] = { @@ -2574,51 +2666,51 @@ static const struct regmap_config gcc_msm8974_regmap_config = { .fast_io = true, }; +static const struct qcom_cc_desc gcc_msm8974_desc = { + .config = &gcc_msm8974_regmap_config, + .clks = gcc_msm8974_clocks, + .num_clks = ARRAY_SIZE(gcc_msm8974_clocks), + .resets = gcc_msm8974_resets, + .num_resets = ARRAY_SIZE(gcc_msm8974_resets), +}; + static const struct of_device_id gcc_msm8974_match_table[] = { { .compatible = "qcom,gcc-msm8974" }, + { .compatible = "qcom,gcc-msm8974pro" , .data = (void *)1UL }, + { .compatible = "qcom,gcc-msm8974pro-ac", .data = (void *)1UL }, { } }; MODULE_DEVICE_TABLE(of, gcc_msm8974_match_table); -struct qcom_cc { - struct qcom_reset_controller reset; - struct clk_onecell_data data; - struct clk *clks[]; -}; +static void msm8974_pro_clock_override(void) +{ + sdcc1_apps_clk_src_init.parent_names = gcc_xo_gpll0_gpll4; + sdcc1_apps_clk_src_init.num_parents = 3; + sdcc1_apps_clk_src.freq_tbl = ftbl_gcc_sdcc1_apps_clk_pro; + sdcc1_apps_clk_src.parent_map = gcc_xo_gpll0_gpll4_map; + + gcc_msm8974_clocks[GPLL4] = &gpll4.clkr; + gcc_msm8974_clocks[GPLL4_VOTE] = &gpll4_vote; + gcc_msm8974_clocks[GCC_SDCC1_CDCCAL_SLEEP_CLK] = + &gcc_sdcc1_cdccal_sleep_clk.clkr; + gcc_msm8974_clocks[GCC_SDCC1_CDCCAL_FF_CLK] = + &gcc_sdcc1_cdccal_ff_clk.clkr; +} static int gcc_msm8974_probe(struct platform_device *pdev) { - void __iomem *base; - struct resource *res; - int i, ret; - struct device *dev = &pdev->dev; struct clk *clk; - struct clk_onecell_data *data; - struct clk **clks; - struct regmap *regmap; - size_t num_clks; - struct qcom_reset_controller *reset; - struct qcom_cc *cc; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(dev, res); - if (IS_ERR(base)) - return PTR_ERR(base); - - regmap = devm_regmap_init_mmio(dev, base, &gcc_msm8974_regmap_config); - if (IS_ERR(regmap)) - return PTR_ERR(regmap); - - num_clks = ARRAY_SIZE(gcc_msm8974_clocks); - cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks, - GFP_KERNEL); - if (!cc) - return -ENOMEM; - - clks = cc->clks; - data = &cc->data; - data->clks = clks; - data->clk_num = num_clks; + struct device *dev = &pdev->dev; + bool pro; + const struct of_device_id *id; + + id = of_match_device(gcc_msm8974_match_table, dev); + if (!id) + return -ENODEV; + pro = !!(id->data); + + if (pro) + msm8974_pro_clock_override(); /* Temporary until RPM clocks supported */ clk = clk_register_fixed_rate(dev, "xo", NULL, CLK_IS_ROOT, 19200000); @@ -2631,39 +2723,12 @@ static int gcc_msm8974_probe(struct platform_device *pdev) if (IS_ERR(clk)) return PTR_ERR(clk); - for (i = 0; i < num_clks; i++) { - if (!gcc_msm8974_clocks[i]) - continue; - clk = devm_clk_register_regmap(dev, gcc_msm8974_clocks[i]); - if (IS_ERR(clk)) - return PTR_ERR(clk); - clks[i] = clk; - } - - ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data); - if (ret) - return ret; - - reset = &cc->reset; - reset->rcdev.of_node = dev->of_node; - reset->rcdev.ops = &qcom_reset_ops, - reset->rcdev.owner = THIS_MODULE, - reset->rcdev.nr_resets = ARRAY_SIZE(gcc_msm8974_resets), - reset->regmap = regmap; - reset->reset_map = gcc_msm8974_resets, - platform_set_drvdata(pdev, &reset->rcdev); - - ret = reset_controller_register(&reset->rcdev); - if (ret) - of_clk_del_provider(dev->of_node); - - return ret; + return qcom_cc_probe(pdev, &gcc_msm8974_desc); } static int gcc_msm8974_remove(struct platform_device *pdev) { - of_clk_del_provider(pdev->dev.of_node); - reset_controller_unregister(platform_get_drvdata(pdev)); + qcom_cc_remove(pdev); return 0; } |