linux-kernel - [PATCH v3 3/3] mmc: sdhci-of-arasan: Skip setting clock delay for 400KHz

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 3 Apr 2023 15:55:51 +0530
From:   Sai Krishna Potthuri <sai.krishna.potthuri@....com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michal Simek <michal.simek@...inx.com>,
        Adrian Hunter <adrian.hunter@...el.com>
CC:     <linux-mmc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <git@....com>,
        <saikrishna12468@...il.com>,
        Sai Krishna Potthuri <sai.krishna.potthuri@....com>
Subject: [PATCH v3 3/3] mmc: sdhci-of-arasan: Skip setting clock delay for 400KHz

Clock delay settings are not defined for 400KHz, so add frequency check
to skip calling the clock delay settings when frequency is <=400KHz.

Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@....com>
---
 drivers/mmc/host/sdhci-of-arasan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index c3fecb8ba66e..d9a29c346745 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -413,7 +413,7 @@ static void sdhci_arasan_set_clock(struct sdhci_host *host, unsigned int clock)
 	}
 
 	/* Set the Input and Output Clock Phase Delays */
-	if (clk_data->set_clk_delays)
+	if (clk_data->set_clk_delays && clock > PHY_CLK_TOO_SLOW_HZ)
 		clk_data->set_clk_delays(host);
 
 	if (sdhci_arasan->internal_phy_reg && clock >= MIN_PHY_CLK_HZ) {
-- 
2.25.1