[PATCH v2 3/3] clk: bcm2835: Add PWM clock support

Remi Pommarel
2015-11-11T14:22:45Z

Register the pwm clock for bcm2835.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
---
drivers/clk/bcm/clk-bcm2835.c | 14 ++++++++++++++
include/dt-bindings/clock/bcm2835.h | 3 ++-
2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 2b01a53..db378f3 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -39,6 +39,7 @@

#include <linux/clk-provider.h>
#include <linux/clkdev.h>
+#include <linux/clk.h>
#include <linux/clk/bcm2835.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -807,6 +808,16 @@ static const struct bcm2835_clock_data bcm2835_clock_emmc_data = {
.frac_bits = 8,
};

+static const struct bcm2835_clock_data bcm2835_clock_pwm_data = {
+ .name = "pwm",
+ .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
+ .parents = bcm2835_clock_per_parents,
+ .ctl_reg = CM_PWMCTL,
+ .div_reg = CM_PWMDIV,
+ .int_bits = 12,
+ .frac_bits = 12,
+};
+
struct bcm2835_pll {
struct clk_hw hw;
struct bcm2835_cprman *cprman;
@@ -1583,6 +1594,9 @@ static int bcm2835_clk_probe(struct platform_device *pdev)
cprman->regs + CM_PERIICTL, CM_GATE_BIT,
0, &cprman->regs_lock);

+ clks[BCM2835_CLOCK_PWM] =
+ bcm2835_register_clock(cprman, &bcm2835_clock_pwm_data);
+
return of_clk_add_provider(dev->of_node, of_clk_src_onecell_get,
&cprman->onecell);
}
diff --git a/include/dt-bindings/clock/bcm2835.h b/include/dt-bindings/clock/bcm2835.h
index d323efa..61f1d20 100644
--- a/include/dt-bindings/clock/bcm2835.h
+++ b/include/dt-bindings/clock/bcm2835.h
@@ -43,5 +43,6 @@
#define BCM2835_CLOCK_TSENS 27
#define BCM2835_CLOCK_EMMC 28
#define BCM2835_CLOCK_PERI_IMAGE 29
+#define BCM2835_CLOCK_PWM 30

-#define BCM2835_CLOCK_COUNT 30
+#define BCM2835_CLOCK_COUNT 31
--
2.0.1