linux-kernel - [PATCH 4/4] mmc: sunxi: Removing unused code

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Date:	Tue, 16 Dec 2014 01:38:01 +0100
From:	David Lanzendörfer <david.lanzendoerfer@....ch>
To:	Ulf Hansson <ulf.hansson@...aro.org>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Arnd Bergmann <arnd@...db.de>, linux-mmc@...r.kernel.org,
	Chris Ball <chris@...ntf.net>, linux-kernel@...r.kernel.org,
	Peter Griffin <peter.griffin@...aro.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Chen-Yu Tsai <wens@...e.org>,
	David Lanzendörfer <david.lanzendoerfer@....ch>,
	李想 <lixiang@...winnertech.com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 4/4] mmc: sunxi: Removing unused code

Removing a relict from reverse engineering of the Android driver code in
sunxi_mmc_clk_set_rate.

Signed-off-by: David Lanzendörfer <david.lanzendoerfer@....ch>
Reported-by: 李想 <lixiang@...winnertech.com>
---
 drivers/mmc/host/sunxi-mmc.c |   10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 5331c88..f73a569 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -635,7 +635,7 @@ static int sunxi_mmc_oclk_onoff(struct sunxi_mmc_host *host, u32 oclk_en)
 static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
 				  struct mmc_ios *ios)
 {
-	u32 rate, oclk_dly, rval, sclk_dly, src_clk;
+	u32 rate, oclk_dly, rval, sclk_dly;
 	int ret;
 
 	rate = clk_round_rate(host->clk_mmc, ios->clock);
@@ -680,14 +680,6 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
 		sclk_dly = 4;
 	}
 
-	src_clk = clk_get_rate(clk_get_parent(host->clk_mmc));
-	if (src_clk >= 300000000 && src_clk <= 400000000) {
-		if (oclk_dly)
-			oclk_dly--;
-		if (sclk_dly)
-			sclk_dly--;
-	}
-
 	clk_sunxi_mmc_phase_control(host->clk_mmc, sclk_dly, oclk_dly);
 
 	return sunxi_mmc_oclk_onoff(host, 1);

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