Add clock node support for ECAP and EHRPWM modules.
Also adds TBCLK for EHRWPM TBCLK to comply with pwm-tiehrpwm
driver.
Signed-off-by: Philip Avinash <avinashphi...@ti.com>
---
Changes Since v2:
- Add prefix of ehrpwm to tblck_enable and tblck_disable functions
- Make functions as static.
Changes Since v1:
- TBCLK make it as actual clock with enable/disable feature.
arch/arm/mach-davinci/da850.c | 46 ++++++++++++++++++++++++++++
arch/arm/mach-davinci/include/mach/da8xx.h | 1 +
2 files changed, 47 insertions(+)
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 0c4a26d..2a2f60c 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -383,6 +383,49 @@ static struct clk dsp_clk = {
.flags = PSC_LRST | PSC_FORCE,
};
+static struct clk ehrpwm_clk = {
+ .name = "ehrpwm",
+ .parent = &pll0_sysclk2,
+ .lpsc = DA8XX_LPSC1_PWM,
+ .gpsc = 1,
+ .flags = DA850_CLK_ASYNC3,
+};
+
+#define DA8XX_EHRPWM_TBCLKSYNC BIT(12)
+
+static void ehrpwm_tblck_enable(struct clk *clk)
+{
+ u32 val;
+
+ val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+ val |= DA8XX_EHRPWM_TBCLKSYNC;
+ writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+}
+
+static void ehrpwm_tblck_disable(struct clk *clk)
+{
+ u32 val;
+
+ val = readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+ val &= ~DA8XX_EHRPWM_TBCLKSYNC;
+ writel(val, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP1_REG));
+}
+
+static struct clk ehrpwm_tbclk = {
+ .name = "ehrpwm_tbclk",
+ .parent = &ehrpwm_clk,
+ .clk_enable = ehrpwm_tblck_enable,
+ .clk_disable = ehrpwm_tblck_disable,
+};
+
+static struct clk ecap_clk = {
+ .name = "ecap",
+ .parent = &pll0_sysclk2,
+ .lpsc = DA8XX_LPSC1_ECAP,
+ .gpsc = 1,
+ .flags = DA850_CLK_ASYNC3,
+};
+
static struct clk_lookup da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -430,6 +473,9 @@ static struct clk_lookup da850_clks[] = {
CLK("vpif", NULL, &vpif_clk),
CLK("ahci", 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, NULL),
};
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h
b/arch/arm/mach-davinci/include/mach/da8xx.h
index de439b7..be77ce2 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -55,6 +55,7 @@ extern unsigned int da850_max_speed;
#define DA8XX_SYSCFG0_VIRT(x) (da8xx_syscfg0_base + (x))
#define DA8XX_JTAG_ID_REG 0x18
#define DA8XX_CFGCHIP0_REG 0x17c
+#define DA8XX_CFGCHIP1_REG 0x180
#define DA8XX_CFGCHIP2_REG 0x184
#define DA8XX_CFGCHIP3_REG 0x188
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
