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authorOlof Johansson <olof@lixom.net>2019-10-23 10:08:11 -0700
committerOlof Johansson <olof@lixom.net>2019-10-23 10:08:12 -0700
commitf82bc135407763c92d5299de9cc145e34798a87b (patch)
treed9187b5a158b190e89fdbc0c1bf55e2b6bc6b1ad
parent21397ae00f6bc1323873501608b981ad729e326e (diff)
parent6aed5a0e0f56213cc5e4bff674fb42e997f30df7 (diff)
download96b-common-f82bc135407763c92d5299de9cc145e34798a87b.tar.gz
Merge tag 'omap-for-v5.4/fixes-rc4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Three fixes for omaps for v5.4-rc cycle Two regression fixes for omap3 iommu. I missed applying two omap3 related iommu pdata quirks patches earlier because the kbuild test robot produced errors on them for missing dependencies. Fix ti-sysc interconnect target module driver handling for watchdog quirk. I must have tested this earlier only with watchdog service running, but clearly it does not do what it needs to do. * tag 'omap-for-v5.4/fixes-rc4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Fix watchdog quirk handling ARM: OMAP2+: Add pdata for OMAP3 ISP IOMMU ARM: OMAP2+: Plug in device_enable/idle ops for IOMMUs Link: https://lore.kernel.org/r/pull-1571848757-282222@atomide.com Signed-off-by: Olof Johansson <olof@lixom.net>
-rw-r--r--arch/arm/mach-omap2/pdata-quirks.c11
-rw-r--r--drivers/bus/ti-sysc.c18
2 files changed, 25 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index d942a3357090..2efd18e8824c 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -89,6 +89,13 @@ static struct iommu_platform_data omap3_iommu_pdata = {
.reset_name = "mmu",
.assert_reset = omap_device_assert_hardreset,
.deassert_reset = omap_device_deassert_hardreset,
+ .device_enable = omap_device_enable,
+ .device_idle = omap_device_idle,
+};
+
+static struct iommu_platform_data omap3_iommu_isp_pdata = {
+ .device_enable = omap_device_enable,
+ .device_idle = omap_device_idle,
};
static int omap3_sbc_t3730_twl_callback(struct device *dev,
@@ -424,6 +431,8 @@ static struct iommu_platform_data omap4_iommu_pdata = {
.reset_name = "mmu_cache",
.assert_reset = omap_device_assert_hardreset,
.deassert_reset = omap_device_deassert_hardreset,
+ .device_enable = omap_device_enable,
+ .device_idle = omap_device_idle,
};
#endif
@@ -617,6 +626,8 @@ static struct of_dev_auxdata omap_auxdata_lookup[] = {
#ifdef CONFIG_ARCH_OMAP3
OF_DEV_AUXDATA("ti,omap2-iommu", 0x5d000000, "5d000000.mmu",
&omap3_iommu_pdata),
+ OF_DEV_AUXDATA("ti,omap2-iommu", 0x480bd400, "480bd400.mmu",
+ &omap3_iommu_isp_pdata),
OF_DEV_AUXDATA("ti,omap3-smartreflex-core", 0x480cb000,
"480cb000.smartreflex", &omap_sr_pdata[OMAP_SR_CORE]),
OF_DEV_AUXDATA("ti,omap3-smartreflex-mpu-iva", 0x480c9000,
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index ad50efb470aa..2b6670daf7fc 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -74,6 +74,7 @@ static const char * const clock_names[SYSC_MAX_CLOCKS] = {
* @clk_disable_quirk: module specific clock disable quirk
* @reset_done_quirk: module specific reset done quirk
* @module_enable_quirk: module specific enable quirk
+ * @module_disable_quirk: module specific disable quirk
*/
struct sysc {
struct device *dev;
@@ -100,6 +101,7 @@ struct sysc {
void (*clk_disable_quirk)(struct sysc *sysc);
void (*reset_done_quirk)(struct sysc *sysc);
void (*module_enable_quirk)(struct sysc *sysc);
+ void (*module_disable_quirk)(struct sysc *sysc);
};
static void sysc_parse_dts_quirks(struct sysc *ddata, struct device_node *np,
@@ -959,6 +961,9 @@ static int sysc_disable_module(struct device *dev)
if (ddata->offsets[SYSC_SYSCONFIG] == -ENODEV)
return 0;
+ if (ddata->module_disable_quirk)
+ ddata->module_disable_quirk(ddata);
+
regbits = ddata->cap->regbits;
reg = sysc_read(ddata, ddata->offsets[SYSC_SYSCONFIG]);
@@ -1248,6 +1253,9 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_MODULE_QUIRK_SGX),
SYSC_QUIRK("wdt", 0, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0,
SYSC_MODULE_QUIRK_WDT),
+ /* Watchdog on am3 and am4 */
+ SYSC_QUIRK("wdt", 0x44e35000, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0,
+ SYSC_MODULE_QUIRK_WDT | SYSC_QUIRK_SWSUP_SIDLE),
#ifdef DEBUG
SYSC_QUIRK("adc", 0, 0, 0x10, -1, 0x47300001, 0xffffffff, 0),
@@ -1440,14 +1448,14 @@ static void sysc_reset_done_quirk_wdt(struct sysc *ddata)
!(val & 0x10), 100,
MAX_MODULE_SOFTRESET_WAIT);
if (error)
- dev_warn(ddata->dev, "wdt disable spr failed\n");
+ dev_warn(ddata->dev, "wdt disable step1 failed\n");
- sysc_write(ddata, wps, 0x5555);
+ sysc_write(ddata, spr, 0x5555);
error = readl_poll_timeout(ddata->module_va + wps, val,
!(val & 0x10), 100,
MAX_MODULE_SOFTRESET_WAIT);
if (error)
- dev_warn(ddata->dev, "wdt disable wps failed\n");
+ dev_warn(ddata->dev, "wdt disable step2 failed\n");
}
static void sysc_init_module_quirks(struct sysc *ddata)
@@ -1471,8 +1479,10 @@ static void sysc_init_module_quirks(struct sysc *ddata)
if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_SGX)
ddata->module_enable_quirk = sysc_module_enable_quirk_sgx;
- if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_WDT)
+ if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_WDT) {
ddata->reset_done_quirk = sysc_reset_done_quirk_wdt;
+ ddata->module_disable_quirk = sysc_reset_done_quirk_wdt;
+ }
}
static int sysc_clockdomain_init(struct sysc *ddata)