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Date: Wed, 17 Jun 2015 14:40:38 +0200 From: Nicolas Ferre <nicolas.ferre@...el.com> To: Boris BREZILLON <boris.brezillon@...e-electrons.com> CC: Alexandre Belloni <alexandre.belloni@...e-electrons.com>, Ludovic Desroches <ludovic.desroches@...el.com>, Josh Wu <josh.wu@...el.com>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <mturquette@...aro.org>, Nicolas Ferre <nicolas.ferre@...el.com> Subject: [PATCH v2 1/2] clk: at91: cleanup PMC header file for PCR register fields Add _MASK and _OFFSET values and cleanup register fields layout. Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com> --- drivers/clk/at91/clk-peripheral.c | 8 ++++---- include/linux/clk/at91_pmc.h | 14 ++++++-------- 2 files changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c index 597fed423d7d..61d0adda7088 100644 --- a/drivers/clk/at91/clk-peripheral.c +++ b/drivers/clk/at91/clk-peripheral.c @@ -165,7 +165,7 @@ static int clk_sam9x5_peripheral_enable(struct clk_hw *hw) if (periph->id < PERIPHERAL_ID_MIN) return 0; - pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID) | + pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID_MASK) | AT91_PMC_PCR_CMD | AT91_PMC_PCR_DIV(periph->div) | AT91_PMC_PCR_EN); @@ -180,7 +180,7 @@ static void clk_sam9x5_peripheral_disable(struct clk_hw *hw) if (periph->id < PERIPHERAL_ID_MIN) return; - pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID) | + pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID_MASK) | AT91_PMC_PCR_CMD); } @@ -194,7 +194,7 @@ static int clk_sam9x5_peripheral_is_enabled(struct clk_hw *hw) return 1; pmc_lock(pmc); - pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID)); + pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID_MASK)); ret = !!(pmc_read(pmc, AT91_PMC_PCR) & AT91_PMC_PCR_EN); pmc_unlock(pmc); @@ -213,7 +213,7 @@ clk_sam9x5_peripheral_recalc_rate(struct clk_hw *hw, return parent_rate; pmc_lock(pmc); - pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID)); + pmc_write(pmc, AT91_PMC_PCR, (periph->id & AT91_PMC_PCR_PID_MASK)); tmp = pmc_read(pmc, AT91_PMC_PCR); pmc_unlock(pmc); diff --git a/include/linux/clk/at91_pmc.h b/include/linux/clk/at91_pmc.h index 7669f7618f39..dfc59e2b64fb 100644 --- a/include/linux/clk/at91_pmc.h +++ b/include/linux/clk/at91_pmc.h @@ -182,13 +182,11 @@ extern void __iomem *at91_pmc_base; #define AT91_PMC_PCSR1 0x108 /* Peripheral Clock Enable Register 1 */ #define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9 and SAMA5] */ -#define AT91_PMC_PCR_PID (0x3f << 0) /* Peripheral ID */ -#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */ -#define AT91_PMC_PCR_DIV(n) ((n) << 16) /* Divisor Value */ -#define AT91_PMC_PCR_DIV0 0x0 /* Peripheral clock is MCK */ -#define AT91_PMC_PCR_DIV2 0x1 /* Peripheral clock is MCK/2 */ -#define AT91_PMC_PCR_DIV4 0x2 /* Peripheral clock is MCK/4 */ -#define AT91_PMC_PCR_DIV8 0x3 /* Peripheral clock is MCK/8 */ -#define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */ +#define AT91_PMC_PCR_PID_MASK 0x3f +#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */ +#define AT91_PMC_PCR_DIV_OFFSET 16 +#define AT91_PMC_PCR_DIV_MASK (0x3 << AT91_PMC_PCR_DIV_OFFSET) +#define AT91_PMC_PCR_DIV(n) ((n) << AT91_PMC_PCR_DIV_OFFSET) /* Divisor Value */ +#define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */ #endif -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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