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/renesas_sdhi_sys_dmac.c | 72 ++++-------------------------------
1 files changed, 9 insertions(+), 63 deletions(-)
diff --git a/kernel/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/kernel/drivers/mmc/host/renesas_sdhi_sys_dmac.c
index c3d63ed..c5f7896 100644
--- a/kernel/drivers/mmc/host/renesas_sdhi_sys_dmac.c
+++ b/kernel/drivers/mmc/host/renesas_sdhi_sys_dmac.c
@@ -1,14 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* DMA support use of SYS DMAC with SDHI SD/SDIO controller
*
- * Copyright (C) 2016-17 Renesas Electronics Corporation
- * Copyright (C) 2016-17 Sang Engineering, Wolfram Sang
+ * Copyright (C) 2016-19 Renesas Electronics Corporation
+ * Copyright (C) 2016-19 Sang Engineering, Wolfram Sang
* Copyright (C) 2017 Horms Solutions, Simon Horman
* Copyright (C) 2010-2011 Guennadi Liakhovetski
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/device.h>
@@ -68,40 +65,7 @@
.scc_offset = 0x0300,
.taps = rcar_gen2_scc_taps,
.taps_num = ARRAY_SIZE(rcar_gen2_scc_taps),
- .max_blk_count = 0xffffffff,
-};
-
-/* Definitions for sampling clocks */
-static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
- {
- .clk_rate = 0,
- .tap = 0x00000300,
- },
-};
-
-static const struct renesas_sdhi_of_data of_rcar_r8a7795_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL |
- TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2 |
- TMIO_MMC_HAVE_4TAP_HS400,
- .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
- MMC_CAP_CMD23,
- .capabilities2 = MMC_CAP2_NO_WRITE_PROTECT,
- .bus_shift = 2,
- .scc_offset = 0x1000,
- .taps = rcar_gen3_scc_taps,
- .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
-};
-
-static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
- .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL |
- TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2,
- .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
- MMC_CAP_CMD23,
- .capabilities2 = MMC_CAP2_NO_WRITE_PROTECT,
- .bus_shift = 2,
- .scc_offset = 0x1000,
- .taps = rcar_gen3_scc_taps,
- .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps),
+ .max_blk_count = UINT_MAX / TMIO_MAX_BLK_SIZE,
};
static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
@@ -118,11 +82,8 @@
{ .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_r8a7795_compatible, },
- { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_r8a7795_compatible, },
{ .compatible = "renesas,rcar-gen1-sdhi", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,rcar-gen2-sdhi", .data = &of_rcar_gen2_compatible, },
- { .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, },
{ .compatible = "renesas,sdhi-shmobile" },
{},
};
@@ -214,10 +175,8 @@
goto pio;
}
- if (sg->length < TMIO_MMC_MIN_DMA_LEN) {
- host->force_pio = true;
+ if (sg->length < TMIO_MMC_MIN_DMA_LEN)
return;
- }
/* The only sg element can be unaligned, use our bounce buffer then */
if (!aligned) {
@@ -241,6 +200,7 @@
desc = NULL;
ret = cookie;
}
+ host->dma_on = true;
}
pio:
if (!desc) {
@@ -287,10 +247,8 @@
goto pio;
}
- if (sg->length < TMIO_MMC_MIN_DMA_LEN) {
- host->force_pio = true;
+ if (sg->length < TMIO_MMC_MIN_DMA_LEN)
return;
- }
/* The only sg element can be unaligned, use our bounce buffer then */
if (!aligned) {
@@ -319,6 +277,7 @@
desc = NULL;
ret = cookie;
}
+ host->dma_on = true;
}
pio:
if (!desc) {
@@ -488,22 +447,8 @@
.dataend = renesas_sdhi_sys_dmac_dataend_dma,
};
-/*
- * Whitelist of specific R-Car Gen3 SoC ES versions to use this DMAC
- * implementation. Currently empty as all supported ES versions use
- * the internal DMAC.
- */
-static const struct soc_device_attribute gen3_soc_whitelist[] = {
- { /* sentinel */ }
-};
-
static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev)
{
- if ((of_device_get_match_data(&pdev->dev) == &of_rcar_gen3_compatible ||
- of_device_get_match_data(&pdev->dev) == &of_rcar_r8a7795_compatible) &&
- !soc_device_match(gen3_soc_whitelist))
- return -ENODEV;
-
return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops);
}
@@ -518,6 +463,7 @@
static struct platform_driver renesas_sys_dmac_sdhi_driver = {
.driver = {
.name = "sh_mobile_sdhi",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
.pm = &renesas_sdhi_sys_dmac_dev_pm_ops,
.of_match_table = renesas_sdhi_sys_dmac_of_match,
},
--
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