From: Shawn Lin <shawn.lin@rock-chips.com>
Date: Fri, 13 May 2016 00:28:15 +0000 (+0800)
Subject: Revert "clk: rockchip: reset init state before mmc card initialization"
X-Git-Tag: firefly_0821_release~2651
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1deaaa33b1c6f5f6fe0b93bca6dca1ac74f288ba;p=firefly-linux-kernel-4.4.55.git

Revert "clk: rockchip: reset init state before mmc card initialization"

This reverts commit 7a03fe6f48f35bbf5f5c3cb46f02e8c90b26b238.

We need a new patch for dw_mmc to deal with phase policy in case of
new register layout, otherwise it will break phase stuff for some
case

Change-Id: Iffb7a6dbe0b17d27c2cca4b2b99ddbc4e0736f18
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
---

diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c
index 2685644826a0..bc24e5a002e7 100644
--- a/drivers/clk/rockchip/clk-mmc-phase.c
+++ b/drivers/clk/rockchip/clk-mmc-phase.c
@@ -41,8 +41,6 @@ static unsigned long rockchip_mmc_recalc(struct clk_hw *hw,
 #define ROCKCHIP_MMC_DEGREE_MASK 0x3
 #define ROCKCHIP_MMC_DELAYNUM_OFFSET 2
 #define ROCKCHIP_MMC_DELAYNUM_MASK (0xff << ROCKCHIP_MMC_DELAYNUM_OFFSET)
-#define ROCKCHIP_MMC_INIT_STATE_RESET 0x1
-#define ROCKCHIP_MMC_INIT_STATE_SHIFT 1
 
 #define PSECS_PER_SEC 1000000000000LL
 
@@ -161,15 +159,6 @@ struct clk *rockchip_clk_register_mmc(const char *name,
 	mmc_clock->reg = reg;
 	mmc_clock->shift = shift;
 
-	/*
-	 * Assert init_state to soft reset the CLKGEN
-	 * for mmc tuning phase and degree
-	 */
-	if (mmc_clock->shift == ROCKCHIP_MMC_INIT_STATE_SHIFT)
-		writel(HIWORD_UPDATE(ROCKCHIP_MMC_INIT_STATE_RESET,
-				     ROCKCHIP_MMC_INIT_STATE_RESET,
-				     mmc_clock->shift), mmc_clock->reg);
-
 	clk = clk_register(NULL, &mmc_clock->hw);
 	if (IS_ERR(clk))
 		goto err_free;