Revert "rcar-gen3: linux-renesas: WORKAROUND for mini SD card issue on M3ULCB"

The Kernel source has been updated.
This reverts commit 8b090e008ef2c4cb9a97c20426f1ac03f9f15555.

Signed-off-by: Khang Nguyen <khang.nguyen.xw@renesas.com>
Signed-off-by: Takamitsu Honda <takamitsu.honda.pv@renesas.com>

1 files changed, 0 insertions, 112 deletions

diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0001-Revert-mmc-renesas_sdhi_internal_dmac-limit-DMA-RX-f.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0001-Revert-mmc-renesas_sdhi_internal_dmac-limit-DMA-RX-f.patch
deleted file mode 100644
index 1d7fa7a..0000000
--- a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0001-Revert-mmc-renesas_sdhi_internal_dmac-limit-DMA-RX-f.patch
+++ /dev/null
@@ -1,112 +0,0 @@
-From 001e18801fa28bbcd02c86707bc56d87ebabca60 Mon Sep 17 00:00:00 2001
-From: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
-Date: Fri, 15 Jun 2018 17:57:43 +0900
-Subject: [PATCH] Revert "mmc: renesas_sdhi_internal_dmac: limit DMA RX for old
- SoCs"
-
-This reverts commit fbd708880ca045a4583a4d2ca2f67e8a41ddab62.
-
-It solves the problem that SD card / eMMC partition information can not
-be read correctly on a device operating with force_pio.
-
-This revert is a workaround due to difference effect with upstream code.
-
-Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
-Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
-
-Conflicts:
-	drivers/mmc/host/renesas_sdhi_internal_dmac.c
----
- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 32 +------------------
- 1 file changed, 1 insertion(+), 31 deletions(-)
-
-diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
-index 2f24a4890418..ba15ea2c9b9f 100644
---- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
-+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
-@@ -9,7 +9,6 @@
-  * published by the Free Software Foundation.
-  */
- 
--#include <linux/bitops.h>
- #include <linux/device.h>
- #include <linux/dma-mapping.h>
- #include <linux/io-64-nonatomic-hi-lo.h>
-@@ -64,17 +63,6 @@
-  *   need a custom accessor.
-  */
- 
--static unsigned long global_flags;
--/*
-- * Workaround for avoiding to use RX DMAC by multiple channels.
-- * On R-Car H3 ES1.* and M3-W ES1.0, when multiple SDHI channels use
-- * RX DMAC simultaneously, sometimes hundreds of bytes data are not
-- * stored into the system memory even if the DMAC interrupt happened.
-- * So, this driver then uses one RX DMAC channel only.
-- */
--#define SDHI_INTERNAL_DMAC_ONE_RX_ONLY	0
--#define SDHI_INTERNAL_DMAC_RX_IN_USE	1
--
- /* Definitions for sampling clocks */
- static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = {
- 	{
-@@ -150,9 +138,6 @@ renesas_sdhi_internal_dmac_abort_dma(struct tmio_mmc_host *host) {
- 	renesas_sdhi_internal_dmac_dm_write(host, DM_CM_RST,
- 					    RST_RESERVED_BITS | val);
- 
--	if (host->data && host->data->flags & MMC_DATA_READ)
--		clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags);
--
- 	renesas_sdhi_internal_dmac_enable_dma(host, true);
- }
- 
-@@ -176,9 +161,6 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
- 
- 	if (data->flags & MMC_DATA_READ) {
- 		dtran_mode |= DTRAN_MODE_CH_NUM_CH1;
--		if (test_bit(SDHI_INTERNAL_DMAC_ONE_RX_ONLY, &global_flags) &&
--		    test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags))
--			goto force_pio;
- 	} else {
- 		dtran_mode |= DTRAN_MODE_CH_NUM_CH0;
- 	}
-@@ -227,9 +209,6 @@ static void renesas_sdhi_internal_dmac_complete_tasklet_fn(unsigned long arg)
- 		host->data->host_cookie = COOKIE_UNMAPPED;
- 	}
- 
--	if (host->data->flags & MMC_DATA_READ)
--		clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags);
--
- 	tmio_mmc_do_data_irq(host);
- out:
- 	spin_unlock_irq(&host->lock);
-@@ -298,11 +277,6 @@ static const struct tmio_mmc_dma_ops renesas_sdhi_internal_dmac_dma_ops = {
-  * implementation as others may use a different implementation.
-  */
- static const struct soc_device_attribute gen3_soc_whitelist[] = {
--	/* specific ones */
--	{ .soc_id = "r8a7795", .revision = "ES1.*",
--	  .data = (void *)BIT(SDHI_INTERNAL_DMAC_ONE_RX_ONLY) },
--	{ .soc_id = "r8a7796", .revision = "ES1.0",
--	  .data = (void *)BIT(SDHI_INTERNAL_DMAC_ONE_RX_ONLY) },
- 	/* generic ones */
- 	{ .soc_id = "r8a7795" },
- 	{ .soc_id = "r8a7796" },
-@@ -314,13 +288,9 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
- 
- static int renesas_sdhi_internal_dmac_probe(struct platform_device *pdev)
- {
--	const struct soc_device_attribute *soc = soc_device_match(gen3_soc_whitelist);
--
--	if (!soc)
-+	if (!soc_device_match(gen3_soc_whitelist))
- 		return -ENODEV;
- 
--	global_flags |= (unsigned long)soc->data;
--
- #ifndef CONFIG_MMC_SDHI_PIO
- 	return renesas_sdhi_probe(pdev, &renesas_sdhi_internal_dmac_dma_ops);
- #else
--- 
-2.17.1
-