diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-04-05 14:27:21 +0900 |
|---|---|---|
| committer | Michael Turquette <mturquette@baylibre.com> | 2017-04-12 18:50:59 +0200 |
| commit | 1f9dfd7ac787ab8caa19a7bf463f617d97c9f66c (patch) | |
| tree | c56a2df98bcc9b9b0e2b6ab3e7caf7b196db8e70 /drivers/clk/clk-cs2000-cp.c | |
| parent | a62ca337b36e31621b582cbe8f17d9404a48e120 (diff) | |
cs-2000-cp: keep Reserved bit on each register
Thus CS2000 datasheet is indicating below, this patch
follows it.
WARNING: All "Reserved" registers must maintain their default
state to ensure proper functional operation.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Diffstat (limited to 'drivers/clk/clk-cs2000-cp.c')
| -rw-r--r-- | drivers/clk/clk-cs2000-cp.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/clk/clk-cs2000-cp.c b/drivers/clk/clk-cs2000-cp.c index 3fca0526d940..f5915ff1d397 100644 --- a/drivers/clk/clk-cs2000-cp.c +++ b/drivers/clk/clk-cs2000-cp.c @@ -36,15 +36,27 @@ /* DEVICE_CTRL */ #define PLL_UNLOCK (1 << 7) +#define AUXOUTDIS (1 << 1) +#define CLKOUTDIS (1 << 0) /* DEVICE_CFG1 */ #define RSEL(x) (((x) & 0x3) << 3) #define RSEL_MASK RSEL(0x3) #define ENDEV1 (0x1) +/* DEVICE_CFG2 */ +#define AUTORMOD (1 << 3) +#define LOCKCLK(x) (((x) & 0x3) << 1) +#define LOCKCLK_MASK LOCKCLK(0x3) +#define FRACNSRC (1 << 0) + /* GLOBAL_CFG */ #define ENDEV2 (0x1) +/* FUNC_CFG1 */ +#define REFCLKDIV(x) (((x) & 0x3) << 3) +#define REFCLKDIV_MASK REFCLKDIV(0x3) + #define CH_SIZE_ERR(ch) ((ch < 0) || (ch >= CH_MAX)) #define hw_to_priv(_hw) container_of(_hw, struct cs2000_priv, hw) #define priv_to_client(priv) (priv->client) @@ -127,7 +139,9 @@ static int cs2000_clk_in_bound_rate(struct cs2000_priv *priv, else return -EINVAL; - return cs2000_bset(priv, FUNC_CFG1, 0x3 << 3, val << 3); + return cs2000_bset(priv, FUNC_CFG1, + REFCLKDIV_MASK, + REFCLKDIV(val)); } static int cs2000_wait_pll_lock(struct cs2000_priv *priv) @@ -153,7 +167,10 @@ static int cs2000_wait_pll_lock(struct cs2000_priv *priv) static int cs2000_clk_out_enable(struct cs2000_priv *priv, bool enable) { /* enable both AUX_OUT, CLK_OUT */ - return cs2000_write(priv, DEVICE_CTRL, enable ? 0 : 0x3); + return cs2000_bset(priv, DEVICE_CTRL, + (AUXOUTDIS | CLKOUTDIS), + enable ? 0 : + (AUXOUTDIS | CLKOUTDIS)); } static u32 cs2000_rate_to_ratio(u32 rate_in, u32 rate_out) @@ -243,7 +260,9 @@ static int cs2000_ratio_select(struct cs2000_priv *priv, int ch) if (ret < 0) return ret; - ret = cs2000_write(priv, DEVICE_CFG2, 0x0); + ret = cs2000_bset(priv, DEVICE_CFG2, + (AUTORMOD | LOCKCLK_MASK | FRACNSRC), + 0); if (ret < 0) return ret; |