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mmc: sdhci-of-esdhc: Don't walk device-tree on every interrupt
Commitb214fe592a
("mmc: sdhci-of-esdhc: add erratum eSDHC7 support") added code to check for a specific compatible string in the device-tree on every esdhc interrupat. Instead of doing this record the quirk in struct sdhci_esdhc and lookup the struct in esdhc_irq. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Link: https://lore.kernel.org/r/20200903012029.25673-1-chris.packham@alliedtelesis.co.nz Fixes:b214fe592a
("mmc: sdhci-of-esdhc: add erratum eSDHC7 support") Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -81,6 +81,7 @@ struct sdhci_esdhc {
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bool quirk_tuning_erratum_type2;
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bool quirk_tuning_erratum_type2;
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bool quirk_ignore_data_inhibit;
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bool quirk_ignore_data_inhibit;
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bool quirk_delay_before_data_reset;
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bool quirk_delay_before_data_reset;
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bool quirk_trans_complete_erratum;
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bool in_sw_tuning;
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bool in_sw_tuning;
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unsigned int peripheral_clock;
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unsigned int peripheral_clock;
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const struct esdhc_clk_fixup *clk_fixup;
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const struct esdhc_clk_fixup *clk_fixup;
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@ -1177,10 +1178,11 @@ static void esdhc_set_uhs_signaling(struct sdhci_host *host,
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static u32 esdhc_irq(struct sdhci_host *host, u32 intmask)
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static u32 esdhc_irq(struct sdhci_host *host, u32 intmask)
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{
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{
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struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
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struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);
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u32 command;
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u32 command;
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if (of_find_compatible_node(NULL, NULL,
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if (esdhc->quirk_trans_complete_erratum) {
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"fsl,p2020-esdhc")) {
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command = SDHCI_GET_CMD(sdhci_readw(host,
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command = SDHCI_GET_CMD(sdhci_readw(host,
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SDHCI_COMMAND));
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SDHCI_COMMAND));
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if (command == MMC_WRITE_MULTIPLE_BLOCK &&
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if (command == MMC_WRITE_MULTIPLE_BLOCK &&
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@ -1334,8 +1336,10 @@ static void esdhc_init(struct platform_device *pdev, struct sdhci_host *host)
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esdhc->clk_fixup = match->data;
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esdhc->clk_fixup = match->data;
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np = pdev->dev.of_node;
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np = pdev->dev.of_node;
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if (of_device_is_compatible(np, "fsl,p2020-esdhc"))
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if (of_device_is_compatible(np, "fsl,p2020-esdhc")) {
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esdhc->quirk_delay_before_data_reset = true;
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esdhc->quirk_delay_before_data_reset = true;
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esdhc->quirk_trans_complete_erratum = true;
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}
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clk = of_clk_get(np, 0);
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clk = of_clk_get(np, 0);
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if (!IS_ERR(clk)) {
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if (!IS_ERR(clk)) {
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