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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-15 15:39:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-15 15:39:02 -0800
commite79ab194d15e1baa25540cb9efaf2a459cf4bc32 (patch)
tree3a2ec9280e286e531a5d18e255271db21368c2d7 /drivers/bus
parent3ec5e8d82b1a4ee42c8956099d89b87917dd3ba5 (diff)
parent44c29b83de1770910b9f4d53bf78f6118da5165f (diff)
downloadop-kernel-dev-e79ab194d15e1baa25540cb9efaf2a459cf4bc32.zip
op-kernel-dev-e79ab194d15e1baa25540cb9efaf2a459cf4bc32.tar.gz
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann: "These are updates for platform specific code on 32-bit ARM machines, essentially anything that can not (yet) be expressed using DT files. Noteworthy changes include: - Added support for the TI DRA71x family of SoCs in mach-omap2, this is an new variant of the the DRA72x/DRA74x automotive infotainment chips we already supported for a while. - Added support for the ST STM32F746 SoC, the first Cortex-M7 based microcontroller we support, related to the smaller STM32F4 family. - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see http://elinux.org/RZ-G - SMP is now supported on the OX820 platform - A lot of code in mach-omap2 gets removed as a follow-up to removing support for board files in the previous release - Davinci has some new work to improve USB support - For i.MX, the performance monitor now supports profiling the memory controller using 'perf'" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits) ARM: davinci: da830-evm: use gpio descriptor for mmc pins ARM: davinci: da850-evm: use gpio descriptor for mmc pins ARM: davinci: hawk: use gpio descriptor for mmc pins ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6 ARM: davinci: da8xx: Fix ohci device name ARM: oxnas: Add OX820 config and makefile entry ARM: oxnas: Add OX820 SMP support ARM: davinci: PM: fix build when da850 not compiled in ARM: orion5x: remove legacy support of ls-chl ARM: integrator: drop EBI access use syscon ARM: BCM5301X: Add back handler ignoring external imprecise aborts ARM: davinci: PM: support da8xx DT platforms ARM: davinci: PM: cleanup: remove references to pdata ARM: davinci: PM: rework init, remove platform device ARM: Kconfig: Introduce MACH_STM32F746 flag ARM: mach-stm32: Add a new SOC - STM32F746 ARM: shmobile: document SK-RZG1E board ARM: shmobile: r8a7745: basic SoC support ARM: imx: mach-imx6ul: add imx6ull support ARM: zynq: Reserve correct amount of non-DMA RAM ...
Diffstat (limited to 'drivers/bus')
-rw-r--r--drivers/bus/arm-cci.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 8900823..2316333 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -2190,6 +2190,9 @@ static int cci_probe_ports(struct device_node *np)
if (!of_match_node(arm_cci_ctrl_if_matches, cp))
continue;
+ if (!of_device_is_available(cp))
+ continue;
+
i = nb_ace + nb_ace_lite;
if (i >= nb_cci_ports)
@@ -2232,6 +2235,13 @@ static int cci_probe_ports(struct device_node *np)
ports[i].dn = cp;
}
+ /*
+ * If there is no CCI port that is under kernel control
+ * return early and report probe status.
+ */
+ if (!nb_ace && !nb_ace_lite)
+ return -ENODEV;
+
/* initialize a stashed array of ACE ports to speed-up look-up */
cci_ace_init_ports();
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