From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/mmc/host/moxart-mmc.c | 82 ++++++++++++++++++++---------------------
1 files changed, 40 insertions(+), 42 deletions(-)
diff --git a/kernel/drivers/mmc/host/moxart-mmc.c b/kernel/drivers/mmc/host/moxart-mmc.c
index 5c81dc7..c4baf8a 100644
--- a/kernel/drivers/mmc/host/moxart-mmc.c
+++ b/kernel/drivers/mmc/host/moxart-mmc.c
@@ -111,8 +111,8 @@
#define CLK_DIV_MASK 0x7f
/* REG_BUS_WIDTH */
-#define BUS_WIDTH_8 BIT(2)
-#define BUS_WIDTH_4 BIT(1)
+#define BUS_WIDTH_4_SUPPORT BIT(3)
+#define BUS_WIDTH_4 BIT(2)
#define BUS_WIDTH_1 BIT(0)
#define MMC_VDD_360 23
@@ -339,13 +339,7 @@
return;
}
for (len = 0; len < remain && len < host->fifo_width;) {
- /* SCR data must be read in big endian. */
- if (data->mrq->cmd->opcode == SD_APP_SEND_SCR)
- *sgp = ioread32be(host->base +
- REG_DATA_WINDOW);
- else
- *sgp = ioread32(host->base +
- REG_DATA_WINDOW);
+ *sgp = ioread32(host->base + REG_DATA_WINDOW);
sgp++;
len += 4;
}
@@ -527,9 +521,6 @@
case MMC_BUS_WIDTH_4:
writel(BUS_WIDTH_4, host->base + REG_BUS_WIDTH);
break;
- case MMC_BUS_WIDTH_8:
- writel(BUS_WIDTH_8, host->base + REG_BUS_WIDTH);
- break;
default:
writel(BUS_WIDTH_1, host->base + REG_BUS_WIDTH);
break;
@@ -569,37 +560,37 @@
if (!mmc) {
dev_err(dev, "mmc_alloc_host failed\n");
ret = -ENOMEM;
- goto out;
+ goto out_mmc;
}
ret = of_address_to_resource(node, 0, &res_mmc);
if (ret) {
dev_err(dev, "of_address_to_resource failed\n");
- goto out;
+ goto out_mmc;
}
irq = irq_of_parse_and_map(node, 0);
if (irq <= 0) {
dev_err(dev, "irq_of_parse_and_map failed\n");
ret = -EINVAL;
- goto out;
+ goto out_mmc;
}
clk = devm_clk_get(dev, NULL);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
- goto out;
+ goto out_mmc;
}
reg_mmc = devm_ioremap_resource(dev, &res_mmc);
if (IS_ERR(reg_mmc)) {
ret = PTR_ERR(reg_mmc);
- goto out;
+ goto out_mmc;
}
ret = mmc_of_parse(mmc);
if (ret)
- goto out;
+ goto out_mmc;
host = mmc_priv(mmc);
host->mmc = mmc;
@@ -608,8 +599,8 @@
host->timeout = msecs_to_jiffies(1000);
host->sysclk = clk_get_rate(clk);
host->fifo_width = readl(host->base + REG_FEATURE) << 2;
- host->dma_chan_tx = dma_request_slave_channel_reason(dev, "tx");
- host->dma_chan_rx = dma_request_slave_channel_reason(dev, "rx");
+ host->dma_chan_tx = dma_request_chan(dev, "tx");
+ host->dma_chan_rx = dma_request_chan(dev, "rx");
spin_lock_init(&host->lock);
@@ -623,6 +614,14 @@
PTR_ERR(host->dma_chan_rx) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
goto out;
+ }
+ if (!IS_ERR(host->dma_chan_tx)) {
+ dma_release_channel(host->dma_chan_tx);
+ host->dma_chan_tx = NULL;
+ }
+ if (!IS_ERR(host->dma_chan_rx)) {
+ dma_release_channel(host->dma_chan_rx);
+ host->dma_chan_rx = NULL;
}
dev_dbg(dev, "PIO mode transfer enabled\n");
host->have_dma = false;
@@ -646,16 +645,8 @@
dmaengine_slave_config(host->dma_chan_rx, &cfg);
}
- switch ((readl(host->base + REG_BUS_WIDTH) >> 3) & 3) {
- case 1:
+ if (readl(host->base + REG_BUS_WIDTH) & BUS_WIDTH_4_SUPPORT)
mmc->caps |= MMC_CAP_4_BIT_DATA;
- break;
- case 2:
- mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
- break;
- default:
- break;
- }
writel(0, host->base + REG_INTERRUPT_MASK);
@@ -671,13 +662,20 @@
goto out;
dev_set_drvdata(dev, mmc);
- mmc_add_host(mmc);
+ ret = mmc_add_host(mmc);
+ if (ret)
+ goto out;
dev_dbg(dev, "IRQ=%d, FIFO is %d bytes\n", irq, host->fifo_width);
return 0;
out:
+ if (!IS_ERR_OR_NULL(host->dma_chan_tx))
+ dma_release_channel(host->dma_chan_tx);
+ if (!IS_ERR_OR_NULL(host->dma_chan_rx))
+ dma_release_channel(host->dma_chan_rx);
+out_mmc:
if (mmc)
mmc_free_host(mmc);
return ret;
@@ -690,19 +688,18 @@
dev_set_drvdata(&pdev->dev, NULL);
- if (mmc) {
- if (!IS_ERR(host->dma_chan_tx))
- dma_release_channel(host->dma_chan_tx);
- if (!IS_ERR(host->dma_chan_rx))
- dma_release_channel(host->dma_chan_rx);
- mmc_remove_host(mmc);
+ if (!IS_ERR_OR_NULL(host->dma_chan_tx))
+ dma_release_channel(host->dma_chan_tx);
+ if (!IS_ERR_OR_NULL(host->dma_chan_rx))
+ dma_release_channel(host->dma_chan_rx);
+ mmc_remove_host(mmc);
- writel(0, host->base + REG_INTERRUPT_MASK);
- writel(0, host->base + REG_POWER_CONTROL);
- writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
- host->base + REG_CLOCK_CONTROL);
- mmc_free_host(mmc);
- }
+ writel(0, host->base + REG_INTERRUPT_MASK);
+ writel(0, host->base + REG_POWER_CONTROL);
+ writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
+ host->base + REG_CLOCK_CONTROL);
+ mmc_free_host(mmc);
+
return 0;
}
@@ -718,6 +715,7 @@
.remove = moxart_remove,
.driver = {
.name = "mmc-moxart",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = moxart_mmc_match,
},
};
--
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