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[92.34.216.5]) by smtp.gmail.com with ESMTPSA id v9-20020a056512048900b004e9cad1cd7csm1328904lfq.229.2023.04.08.15.00.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Apr 2023 15:00:40 -0700 (PDT) From: Linus Walleij Date: Sun, 09 Apr 2023 00:00:28 +0200 Subject: [PATCH v2 07/12] mmc: mmci: Use state machine state as exit condition MIME-Version: 1.0 Message-Id: <20230405-pl180-busydetect-fix-v2-7-eeb10323b546@linaro.org> References: <20230405-pl180-busydetect-fix-v2-0-eeb10323b546@linaro.org> In-Reply-To: <20230405-pl180-busydetect-fix-v2-0-eeb10323b546@linaro.org> To: Yann Gautier , Stefan Hansson , Ulf Hansson , Maxime Coquelin , Alexandre Torgue Cc: linux-mmc@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Linus Walleij X-Mailer: b4 0.12.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Return true if and only if we reached the state MMCI_BUSY_DONE in the ux500 ->busy_complete() callback. Signed-off-by: Linus Walleij --- ChangeLog v1->v2: - No changes --- drivers/mmc/host/mmci.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 590703075bbc..2689c6bb62d6 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -673,7 +673,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) ~host->variant->busy_detect_mask, base + MMCIMASK0); host->busy_state = MMCI_BUSY_DONE; host->busy_status = 0; - return true; + goto out_ret_state; } /* @@ -704,7 +704,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) /* Keep accumulating status bits */ host->busy_status |= status & (MCI_CMDSENT | MCI_CMDRESPEND); host->busy_state = MMCI_BUSY_WAITING_FOR_IRQS; - return false; + goto out_ret_state; } retries--; } @@ -713,8 +713,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) writel(readl(base + MMCIMASK0) & ~host->variant->busy_detect_mask, base + MMCIMASK0); host->busy_state = MMCI_BUSY_DONE; - host->busy_status = 0; - return true; + goto out_ret_state; } /* @@ -733,7 +732,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) host->busy_status |= status & (MCI_CMDSENT | MCI_CMDRESPEND); writel(host->variant->busy_detect_mask, base + MMCICLEAR); host->busy_state = MMCI_BUSY_START_IRQ; - return false; + goto out_ret_state; } else { dev_dbg(mmc_dev(host->mmc), "lost busy status when waiting for busy start IRQ\n"); @@ -742,7 +741,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) ~host->variant->busy_detect_mask, base + MMCIMASK0); host->busy_state = MMCI_BUSY_DONE; host->busy_status = 0; - return true; + goto out_ret_state; } } @@ -751,7 +750,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) host->busy_status |= status & (MCI_CMDSENT | MCI_CMDRESPEND); writel(host->variant->busy_detect_mask, base + MMCICLEAR); host->busy_state = MMCI_BUSY_END_IRQ; - return false; + goto out_ret_state; } else { dev_dbg(mmc_dev(host->mmc), "lost busy status when waiting for busy end IRQ\n"); @@ -760,7 +759,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) ~host->variant->busy_detect_mask, base + MMCIMASK0); host->busy_state = MMCI_BUSY_DONE; host->busy_status = 0; - return true; + goto out_ret_state; } } @@ -774,7 +773,7 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) if (status & host->variant->busy_detect_flag) { /* We should just get two IRQs for busy detect */ dev_err(mmc_dev(host->mmc), "spurious busy detect IRQ\n"); - return false; + goto out_ret_state; } writel(host->variant->busy_detect_mask, base + MMCICLEAR); @@ -783,9 +782,13 @@ static bool ux500_busy_complete(struct mmci_host *host, u32 status, u32 err_msk) host->busy_state = MMCI_BUSY_DONE; host->busy_status = 0; + } else { + dev_dbg(mmc_dev(host->mmc), "fell through on state %d\n", + host->busy_state); } - return true; +out_ret_state: + return (host->busy_state == MMCI_BUSY_DONE); } /*