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From: Andrey Panov <rockford@yandex.ru>
To: barebox@lists.infradead.org
Subject: [PATCH v2 05/18] CLK: clk-divider: Respect CLK_DIVIDER_HIWORD_MASK flag
Date: Wed,  4 Mar 2015 23:11:33 +0300	[thread overview]
Message-ID: <1425499906-32125-6-git-send-email-rockford@yandex.ru> (raw)
In-Reply-To: <1425499906-32125-1-git-send-email-rockford@yandex.ru>

It is required for Rockchip SoCs where clock settings registers have
write-enable mask in high word.

Signed-off-by: Andrey Panov <rockford@yandex.ru>
---
 drivers/clk/clk-divider.c | 4 ++++
 include/linux/clk.h       | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index 506a966..eb48334 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -197,6 +197,10 @@ static int clk_divider_set_rate(struct clk *clk, unsigned long rate,
 	val = readl(divider->reg);
 	val &= ~(div_mask(divider) << divider->shift);
 	val |= value << divider->shift;
+
+	if (clk->flags & CLK_DIVIDER_HIWORD_MASK)
+		val |= div_mask(divider) << (divider->shift + 16);
+
 	writel(val, divider->reg);
 
 	return 0;
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 89cb44e..258bbe3 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -248,6 +248,8 @@ struct clk_divider {
 	int table_size;
 };
 
+#define CLK_DIVIDER_HIWORD_MASK		(1 << 3)
+
 #define CLK_MUX_HIWORD_MASK		(1 << 2)
 
 extern struct clk_ops clk_divider_ops;
-- 
2.1.4


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  parent reply	other threads:[~2015-03-04 20:12 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-04 20:11 [PATCH v2 00/18] Update support for RK3188, Radxa Rock board Andrey Panov
2015-03-04 20:11 ` [PATCH v2 01/18] lib: Add gcd() function Andrey Panov
2015-03-04 20:11 ` [PATCH v2 02/18] CLK: Add support for composite clock from Linux kernel Andrey Panov
2015-03-04 20:11 ` [PATCH v2 03/18] CLK: Add fractional divider clock support " Andrey Panov
2015-03-04 20:11 ` [PATCH v2 04/18] CLK: clk-mux: Respect CLK_MUX_HIWORD_MASK flag Andrey Panov
2015-03-04 20:11 ` Andrey Panov [this message]
2015-03-04 20:11 ` [PATCH v2 06/18] CLK: clk-divider: Introduce clk_divider_alloc() and *_free() routines Andrey Panov
2015-03-04 20:11 ` [PATCH v2 07/18] CLK: clk-divider: Respect CLK_DIVIDER_POWER_OF_TWO flag Andrey Panov
2015-03-04 20:11 ` [PATCH v2 08/18] CLK: Check and do not allow to register clock twice Andrey Panov
2015-03-04 20:11 ` [PATCH v2 09/18] CLK: Add helper defines to barebox-wrapper.h for easier porting of drivers from Linux kernel Andrey Panov
2015-03-04 20:11 ` [PATCH v2 10/18] NET: arc_emac: Update for newer DTS, support for Rockchip .compatible Andrey Panov
2015-03-04 20:11 ` [PATCH v2 11/18] MMC: dw_mmc: Add support for PIO mode and Rockchip variant of this hardware Andrey Panov
2015-03-04 20:11 ` [PATCH v2 12/18] ARM: Rockchip: Remove unused files from mach-rockchip Andrey Panov
2015-03-04 20:11 ` [PATCH v2 13/18] ARM: Rockchip: Update Kconfig Andrey Panov
2015-03-04 20:11 ` [PATCH v2 14/18] ARM: Rockchip: Update clk driver from Linux kernel for use with newer DTS Andrey Panov
2015-03-04 20:11 ` [PATCH v2 15/18] ARM: Rockchip: Use newer DTS for Radxa Rock board Andrey Panov
2015-03-04 20:11 ` [PATCH v2 16/18] ARM: Rockchip: Update " Andrey Panov
2015-03-04 20:11 ` [PATCH v2 17/18] ARM: Rockchip: Add Radxa Rock defconfig Andrey Panov
2015-03-04 20:11 ` [PATCH v2 18/18] ARM: Rockchip: Add documentation Andrey Panov
2015-03-05  8:44 ` [PATCH v2 00/18] Update support for RK3188, Radxa Rock board Sascha Hauer
2015-03-05 18:46   ` Панов Андрей

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