diff options
| author | Andrew Bresticker <abrestic@chromium.org> | 2013-09-25 23:12:51 +0200 |
|---|---|---|
| committer | Tomasz Figa <t.figa@samsung.com> | 2014-01-08 18:02:43 +0100 |
| commit | 3538a2cf0e04ad69840d74f46f7f8af920d913b5 (patch) | |
| tree | f01c90bdb68d818038b67d06aee0a86e0c4b0247 /drivers/clk/samsung/clk-exynos-audss.c | |
| parent | ARM: dts: exynos5250: add input clocks to audss clock controller (diff) | |
| download | linux-3538a2cf0e04ad69840d74f46f7f8af920d913b5.tar.xz linux-3538a2cf0e04ad69840d74f46f7f8af920d913b5.zip | |
clk: exynos-audss: add support for Exynos 5420
The AudioSS block on Exynos 5420 has an additional clock gate for the
ADMA bus clock.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Diffstat (limited to 'drivers/clk/samsung/clk-exynos-audss.c')
| -rw-r--r-- | drivers/clk/samsung/clk-exynos-audss.c | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index 19a0d874931e..884187fbfe00 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -19,6 +19,12 @@ #include <dt-bindings/clk/exynos-audss-clk.h> +enum exynos_audss_clk_type { + TYPE_EXYNOS4210, + TYPE_EXYNOS5250, + TYPE_EXYNOS5420, +}; + static DEFINE_SPINLOCK(lock); static struct clk **clk_table; static void __iomem *reg_base; @@ -59,6 +65,16 @@ static struct syscore_ops exynos_audss_clk_syscore_ops = { }; #endif /* CONFIG_PM_SLEEP */ +static const struct of_device_id exynos_audss_clk_of_match[] = { + { .compatible = "samsung,exynos4210-audss-clock", + .data = (void *)TYPE_EXYNOS4210, }, + { .compatible = "samsung,exynos5250-audss-clock", + .data = (void *)TYPE_EXYNOS5250, }, + { .compatible = "samsung,exynos5420-audss-clock", + .data = (void *)TYPE_EXYNOS5420, }, + {}, +}; + /* register exynos_audss clocks */ static int exynos_audss_clk_probe(struct platform_device *pdev) { @@ -68,6 +84,13 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) const char *mout_i2s_p[] = {"mout_audss", "cdclk0", "sclk_audio0"}; const char *sclk_pcm_p = "sclk_pcm0"; struct clk *pll_ref, *pll_in, *cdclk, *sclk_audio, *sclk_pcm_in; + const struct of_device_id *match; + enum exynos_audss_clk_type variant; + + match = of_match_node(exynos_audss_clk_of_match, pdev->dev.of_node); + if (!match) + return -EINVAL; + variant = (enum exynos_audss_clk_type)match->data; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); reg_base = devm_ioremap_resource(&pdev->dev, res); @@ -83,7 +106,10 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) return -ENOMEM; clk_data.clks = clk_table; - clk_data.clk_num = EXYNOS_AUDSS_MAX_CLKS; + if (variant == TYPE_EXYNOS5420) + clk_data.clk_num = EXYNOS_AUDSS_MAX_CLKS; + else + clk_data.clk_num = EXYNOS_AUDSS_MAX_CLKS - 1; pll_ref = devm_clk_get(&pdev->dev, "pll_ref"); pll_in = devm_clk_get(&pdev->dev, "pll_in"); @@ -142,6 +168,12 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) sclk_pcm_p, CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 5, 0, &lock); + if (variant == TYPE_EXYNOS5420) { + clk_table[EXYNOS_ADMA] = clk_register_gate(NULL, "adma", + "dout_srp", CLK_SET_RATE_PARENT, + reg_base + ASS_CLK_GATE, 9, 0, &lock); + } + for (i = 0; i < clk_data.clk_num; i++) { if (IS_ERR(clk_table[i])) { dev_err(&pdev->dev, "failed to register clock %d\n", i); @@ -188,12 +220,6 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id exynos_audss_clk_of_match[] = { - { .compatible = "samsung,exynos4210-audss-clock", }, - { .compatible = "samsung,exynos5250-audss-clock", }, - {}, -}; - static struct platform_driver exynos_audss_clk_driver = { .driver = { .name = "exynos-audss-clk", |