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:   Wed, 01 Nov 2023 19:48:53 -0700
From:   Drew Fustini <>
To:     Ulf Hansson <>,
        Rob Herring <>,
        Krzysztof Kozlowski <>,
        Conor Dooley <>,
        Jisheng Zhang <>,
        Adrian Hunter <>,
        Guo Ren <>, Fu Wei <>,
        Paul Walmsley <>,
        Palmer Dabbelt <>,
        Albert Ou <>,
        Conor Dooley <>
Cc:     Robert Nelson <>,
        Jason Kridner <>,
        Xi Ruoyao <>, Han Gao <>,
        Icenowy Zheng <>,,,,,
        Drew Fustini <>
Subject: [PATCH v4 2/7] mmc: sdhci: add __sdhci_execute_tuning() to header

Expose __sdhci_execute_tuning() so that it can be called from the
mmc host controller drivers.

In the sdhci-of-dwcmshc driver, sdhci_dwcmshc_th1520_ops sets
platform_execute_tuning to th1520_execute_tuning(). That function has
to manipulate phy registers before tuning can be performed. To avoid
copying the code verbatim from __sdhci_execute_tuning() into
th1520_execute_tuning(), make it possible for __sdhci_execute_tuning()
to be called from sdhci-of-dwcmshc.

Signed-off-by: Drew Fustini <>
 drivers/mmc/host/sdhci.c | 3 ++-
 drivers/mmc/host/sdhci.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index ff41aa56564e..c79f73459915 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2841,7 +2841,7 @@ void sdhci_send_tuning(struct sdhci_host *host, u32 opcode)
-static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)
+int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)
 	int i;
@@ -2879,6 +2879,7 @@ static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)
 	return -EAGAIN;
 int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index f219bdea8f28..a20864fc0641 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -793,6 +793,7 @@ void sdhci_set_bus_width(struct sdhci_host *host, int width);
 void sdhci_reset(struct sdhci_host *host, u8 mask);
 void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing);
 int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
+int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode);
 void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
 int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
 				      struct mmc_ios *ios);


Powered by blists - more mailing lists