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clk: bcm2835: Add PWM clock support

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Register the pwm clock for bcm2835.

Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
This commit is contained in:
Remi Pommarel 2015-12-06 17:22:48 +01:00 committed by Michael Turquette
parent 6d18b8adbe
commit cfbab8fbab
2 changed files with 15 additions and 1 deletions
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13
drivers/clk/bcm/clk-bcm2835.c
View File

@ -807,6 +807,16 @@ 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;
@ -1584,6 +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);
}

3
include/dt-bindings/clock/bcm2835.h
View File

@ -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