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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-06 07:21:08 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-06 07:21:08 +0300
commit167569343fac74ec6825a3ab982f795b5880e63e (patch)
tree965adb59fbe10d9f45a7fb90cb1ec1bc18d4613c /arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
parentb240b419db5d624ce7a5a397d6f62a1a686009ec (diff)
parentcd903711fd9dce808b5cc07e509135886d962b0c (diff)
downloadlinux-167569343fac74ec6825a3ab982f795b5880e63e.tar.xz
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: "This release brings up a new platform based on the old ARM9 core: the Nuvoton NPCM is used as a baseboard management controller, competing with the better known ASpeed AST2xx series. Another important change is the addition of ARMv7-A based chips in mach-stm32. The older parts in this platform are ARMv7-M based microcontrollers, now they are expanding to general-purpose workloads. The other changes are the usual defconfig updates to enable additional drivers, lesser bugfixes. The largest updates as often are the ongoing OMAP cleanups, but we also have a number of changes for the older PXA and davinci platforms this time. For the Renesas shmobile/r-car platform, some new infrastructure is needed to make the watchdog work correctly. Supporting Multiprocessing on Allwinner A80 required a significant amount of new code, but is not doing anything unexpected" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (179 commits) arm: npcm: modify configuration for the NPCM7xx BMC. MAINTAINERS: update entry for ARM/berlin ARM: omap2: fix am43xx build without L2X0 ARM: davinci: da8xx: simplify CFGCHIP regmap_config ARM: davinci: da8xx: fix oops in USB PHY driver due to stack allocated platform_data ARM: multi_v7_defconfig: add NXP FlexCAN IP support ARM: multi_v7_defconfig: enable thermal driver for i.MX devices ARM: multi_v7_defconfig: add RN5T618 PMIC family support ARM: multi_v7_defconfig: add NXP graphics drivers ARM: multi_v7_defconfig: add GPMI NAND controller support ARM: multi_v7_defconfig: add OCOTP driver for NXP SoCs ARM: multi_v7_defconfig: configure I2C driver built-in arm64: defconfig: add CONFIG_UNIPHIER_THERMAL and CONFIG_SNI_AVE ARM: imx: fix imx6sll-only build ARM: imx: select ARM_CPU_SUSPEND for CPU_IDLE as well ARM: mxs_defconfig: Re-sync defconfig ARM: imx_v4_v5_defconfig: Use the generic fsl-asoc-card driver ARM: imx_v4_v5_defconfig: Re-sync defconfig arm64: defconfig: enable stmmac ethernet to defconfig ARM: EXYNOS: Simplify code in coupled CPU idle hot path ...
Diffstat (limited to 'arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c')
-rw-r--r--arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
index 44438f344dc8..93f628acfd94 100644
--- a/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
@@ -1,9 +1,9 @@
/*
* R-Car Generation 2 da9063/da9210 regulator quirk
*
- * The r8a7790/lager and r8a7791/koelsch development boards have da9063 and
- * da9210 regulators. Both regulators have their interrupt request lines tied
- * to the same interrupt pin (IRQ2) on the SoC.
+ * Certain Gen2 development boards have an da9063 and one or more da9210
+ * regulators. All of these regulators have their interrupt request lines
+ * tied to the same interrupt pin (IRQ2) on the SoC.
*
* After cold boot or da9063-induced restart, both the da9063 and da9210 seem
* to assert their interrupt request lines. Hence as soon as one driver
@@ -50,7 +50,7 @@ static void __iomem *irqc;
static u8 da9063_irq_clr[] = { DA9063_REG_IRQ_MASK_A, 0xff, 0xff, 0xff, 0xff };
static u8 da9210_irq_clr[] = { DA9210_REG_MASK_A, 0xff, 0xff };
-static struct i2c_msg da9xxx_msgs[2] = {
+static struct i2c_msg da9xxx_msgs[3] = {
{
.addr = 0x58,
.len = ARRAY_SIZE(da9063_irq_clr),
@@ -59,6 +59,10 @@ static struct i2c_msg da9xxx_msgs[2] = {
.addr = 0x68,
.len = ARRAY_SIZE(da9210_irq_clr),
.buf = da9210_irq_clr,
+ }, {
+ .addr = 0x70,
+ .len = ARRAY_SIZE(da9210_irq_clr),
+ .buf = da9210_irq_clr,
},
};
@@ -85,12 +89,16 @@ static int regulator_quirk_notify(struct notifier_block *nb,
dev_dbg(dev, "Detected %s\n", client->name);
if ((client->addr == 0x58 && !strcmp(client->name, "da9063")) ||
- (client->addr == 0x68 && !strcmp(client->name, "da9210"))) {
- int ret;
+ (client->addr == 0x68 && !strcmp(client->name, "da9210")) ||
+ (client->addr == 0x70 && !strcmp(client->name, "da9210"))) {
+ int ret, len;
+
+ /* There are two DA9210 on Stout, one on the other boards. */
+ len = of_machine_is_compatible("renesas,stout") ? 3 : 2;
dev_info(&client->dev, "clearing da9063/da9210 interrupts\n");
- ret = i2c_transfer(client->adapter, da9xxx_msgs, ARRAY_SIZE(da9xxx_msgs));
- if (ret != ARRAY_SIZE(da9xxx_msgs))
+ ret = i2c_transfer(client->adapter, da9xxx_msgs, len);
+ if (ret != len)
dev_err(&client->dev, "i2c error %d\n", ret);
}
@@ -118,6 +126,7 @@ static int __init rcar_gen2_regulator_quirk(void)
if (!of_machine_is_compatible("renesas,koelsch") &&
!of_machine_is_compatible("renesas,lager") &&
+ !of_machine_is_compatible("renesas,stout") &&
!of_machine_is_compatible("renesas,gose"))
return -ENODEV;