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authorDavid Lechner <david@lechnology.com>2016-10-31 15:04:24 -0500
committerSekhar Nori <nsekhar@ti.com>2016-11-01 15:30:03 +0530
commit36173c2d023bad4dbad6ed0e6e886fde10ec8f2f (patch)
tree5b0d4e49de58920774fc55cae5d869d66d46d997
parenta909d3e636995ba7c349e2ca5dbb528154d4ac30 (diff)
ARM: davinci: da850: Fix pwm name matching
This fixes pwm name matching for DA850 familiy devices. When using device tree, the da850_auxdata_lookup[] table caused pwm devices to have the exact same name, which caused errors when trying to register the devices. We cannot have multiple entries for the same clock in in da850_clks[], so we have added child clocks to the EHRPWM and ECAP LPSC clocks so that each PWM device will have its own clock for proper name matching. Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
-rw-r--r--arch/arm/mach-davinci/da850.c48
-rw-r--r--arch/arm/mach-davinci/da8xx-dt.c10
2 files changed, 50 insertions, 8 deletions
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index ed3d0e9f72ac..6d8c8fa75ff1 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -424,6 +424,16 @@ static struct clk ehrpwm_clk = {
.gpsc = 1,
};
+static struct clk ehrpwm0_clk = {
+ .name = "ehrpwm0",
+ .parent = &ehrpwm_clk,
+};
+
+static struct clk ehrpwm1_clk = {
+ .name = "ehrpwm1",
+ .parent = &ehrpwm_clk,
+};
+
#define DA8XX_EHRPWM_TBCLKSYNC BIT(12)
static void ehrpwm_tblck_enable(struct clk *clk)
@@ -451,6 +461,16 @@ static struct clk ehrpwm_tbclk = {
.clk_disable = ehrpwm_tblck_disable,
};
+static struct clk ehrpwm0_tbclk = {
+ .name = "ehrpwm0_tbclk",
+ .parent = &ehrpwm_tbclk,
+};
+
+static struct clk ehrpwm1_tbclk = {
+ .name = "ehrpwm1_tbclk",
+ .parent = &ehrpwm_tbclk,
+};
+
static struct clk ecap_clk = {
.name = "ecap",
.parent = &async3_clk,
@@ -458,6 +478,21 @@ static struct clk ecap_clk = {
.gpsc = 1,
};
+static struct clk ecap0_clk = {
+ .name = "ecap0_clk",
+ .parent = &ecap_clk,
+};
+
+static struct clk ecap1_clk = {
+ .name = "ecap1_clk",
+ .parent = &ecap_clk,
+};
+
+static struct clk ecap2_clk = {
+ .name = "ecap2_clk",
+ .parent = &ecap_clk,
+};
+
static struct clk_lookup da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -510,9 +545,16 @@ static struct clk_lookup da850_clks[] = {
CLK("vpif", NULL, &vpif_clk),
CLK("ahci_da850", NULL, &sata_clk),
CLK("davinci-rproc.0", NULL, &dsp_clk),
- CLK("ehrpwm", "fck", &ehrpwm_clk),
- CLK("ehrpwm", "tbclk", &ehrpwm_tbclk),
- CLK("ecap", "fck", &ecap_clk),
+ CLK(NULL, NULL, &ehrpwm_clk),
+ CLK("ehrpwm.0", "fck", &ehrpwm0_clk),
+ CLK("ehrpwm.1", "fck", &ehrpwm1_clk),
+ CLK(NULL, NULL, &ehrpwm_tbclk),
+ CLK("ehrpwm.0", "tbclk", &ehrpwm0_tbclk),
+ CLK("ehrpwm.1", "tbclk", &ehrpwm1_tbclk),
+ CLK(NULL, NULL, &ecap_clk),
+ CLK("ecap.0", "fck", &ecap0_clk),
+ CLK("ecap.1", "fck", &ecap1_clk),
+ CLK("ecap.2", "fck", &ecap2_clk),
CLK(NULL, NULL, NULL),
};
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index c9f7e9274aa8..cd97f783ecf2 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -23,11 +23,11 @@ static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("ti,davinci-i2c", 0x01e28000, "i2c_davinci.2", NULL),
OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "davinci-wdt", NULL),
OF_DEV_AUXDATA("ti,da830-mmc", 0x01c40000, "da830-mmc.0", NULL),
- OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f00000, "ehrpwm", NULL),
- OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f02000, "ehrpwm", NULL),
- OF_DEV_AUXDATA("ti,da850-ecap", 0x01f06000, "ecap", NULL),
- OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap", NULL),
- OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap", NULL),
+ OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f00000, "ehrpwm.0", NULL),
+ OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f02000, "ehrpwm.1", NULL),
+ OF_DEV_AUXDATA("ti,da850-ecap", 0x01f06000, "ecap.0", NULL),
+ OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap.1", NULL),
+ OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap.2", NULL),
OF_DEV_AUXDATA("ti,da830-spi", 0x01c41000, "spi_davinci.0", NULL),
OF_DEV_AUXDATA("ti,da830-spi", 0x01f0e000, "spi_davinci.1", NULL),
OF_DEV_AUXDATA("ns16550a", 0x01c42000, "serial8250.0", NULL),