mmc: wmt-sdmmc: Simplify wmt_set_sd_power implementation
Simplify the code to set/clear BM_SD_OFF bit: | power_inverted: 0 | power_inverted: 1 ------------------------------------------------- enable: 0 | SET BM_SD_OFF | CLEAR BM_SD_OFF ------------------------------------------------- enable: 1 | CLEAR BM_SD_OFF | SET BM_SD_OFF Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Chris Ball <cjb@laptop.org>
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@ -212,28 +212,14 @@ struct wmt_mci_priv {
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static void wmt_set_sd_power(struct wmt_mci_priv *priv, int enable)
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static void wmt_set_sd_power(struct wmt_mci_priv *priv, int enable)
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{
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{
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u32 reg_tmp;
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u32 reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
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if (enable) {
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if (priv->power_inverted) {
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if (enable ^ priv->power_inverted)
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reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
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reg_tmp &= ~BM_SD_OFF;
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writeb(reg_tmp | BM_SD_OFF,
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else
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priv->sdmmc_base + SDMMC_BUSMODE);
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reg_tmp |= BM_SD_OFF;
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} else {
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reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
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writeb(reg_tmp, priv->sdmmc_base + SDMMC_BUSMODE);
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writeb(reg_tmp & (~BM_SD_OFF),
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priv->sdmmc_base + SDMMC_BUSMODE);
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}
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} else {
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if (priv->power_inverted) {
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reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
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writeb(reg_tmp & (~BM_SD_OFF),
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priv->sdmmc_base + SDMMC_BUSMODE);
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} else {
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reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
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writeb(reg_tmp | BM_SD_OFF,
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priv->sdmmc_base + SDMMC_BUSMODE);
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}
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}
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}
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}
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static void wmt_mci_read_response(struct mmc_host *mmc)
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static void wmt_mci_read_response(struct mmc_host *mmc)
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