From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-mmc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: [PATCH] mmc: tmio: more concise clk calculation
Date: Thu, 30 Aug 2018 14:14:38 +0200 [thread overview]
Message-ID: <20180830121438.12588-1-wsa+renesas@sang-engineering.com> (raw)
Concise, but still readable.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
drivers/mmc/host/tmio_mmc.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 0ae9ba1ee01b..0ae100e62b57 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -56,14 +56,9 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
divisor = host->pdata->hclk / new_clock;
- if (divisor <= 1) {
- clk_sel = 1;
- clk = 0;
- } else {
- clk_sel = 0;
- /* bit7 set: 1/512, ... bit0 set:1/4, all bits clear: 1/2 */
- clk = roundup_pow_of_two(divisor) >> 2;
- }
+ /* bit7 set: 1/512, ... bit0 set: 1/4, all bits clear: 1/2 */
+ clk_sel = (divisor <= 1);
+ clk = clk_sel ? 0 : (roundup_pow_of_two(divisor) >> 2);
host->pdata->set_clk_div(host->pdev, clk_sel);
--
2.11.0
next reply other threads:[~2018-08-30 16:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-30 12:14 Wolfram Sang [this message]
2018-08-30 12:30 ` [PATCH] mmc: tmio: more concise clk calculation Ulf Hansson
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