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Thu, 09 Nov 2023 21:42:29 -0800 (PST) Received: from [127.0.1.1] ([2601:1c2:1800:f680:2071:4479:98b8:cc69]) by smtp.gmail.com with ESMTPSA id ix22-20020a170902f81600b001b8a00d4f7asm4498845plb.9.2023.11.09.21.42.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Nov 2023 21:42:28 -0800 (PST) From: Drew Fustini Date: Thu, 09 Nov 2023 21:41:12 -0800 Subject: [PATCH v5 2/7] mmc: sdhci: add __sdhci_execute_tuning() to header Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231109-th1520-mmc-v5-2-018bd039cf17@baylibre.com> References: <20231109-th1520-mmc-v5-0-018bd039cf17@baylibre.com> In-Reply-To: <20231109-th1520-mmc-v5-0-018bd039cf17@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , Fu Wei , Conor Dooley Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1699594943; l=2108; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=vV7D9g0JyI+aykknduEYFaEeV4K8xwyLfp1qBkgVUvA=; b=wiXFL4D9Q3411BhcGKUB1ePUooVyFCo6lIXJGCjVRVhgVo/MthWkxzFvbNGGV91mDj8tIZhb9 3ad00+5H/oQC96F88xLLDDeHjyQTU7R4MEvXiEmQLL2+zlo1saaRuND X-Developer-Key: i=dfustini@baylibre.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= 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. Acked-by: Adrian Hunter 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) } EXPORT_SYMBOL_GPL(sdhci_send_tuning); -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) sdhci_reset_tuning(host); return -EAGAIN; } +EXPORT_SYMBOL_GPL(__sdhci_execute_tuning); 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);