git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From 793bed29e78cc54d989333d756fef51efaca4e56 Mon Sep 17 00:00:00 2001
   2 From: Weijie Gao <weijie.gao@mediatek.com>
   3 Date: Tue, 26 Jul 2022 09:29:18 +0800
   4 Subject: [PATCH 58/71] mmc: mtk-sd: add support to display verbose error log
   5
   6 Add an option to enable debug log, and also display verbose error log for
   7 both command and data.
   8
   9 Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
  10 ---
  11  drivers/mmc/Kconfig  |  8 ++++++++
  12  drivers/mmc/Makefile |  4 ++++
  13  drivers/mmc/mtk-sd.c | 24 +++++++++++++++---------
  14  3 files changed, 27 insertions(+), 9 deletions(-)
  15
  16 --- a/drivers/mmc/Kconfig
  17 +++ b/drivers/mmc/Kconfig
  18 @@ -855,6 +855,14 @@ config MMC_MTK
  19           This is needed if support for any SD/SDIO/MMC devices is required.
  20           If unsure, say N.
  21
  22 +config MMC_MTK_DEBUG
  23 +       bool "Display verbose error log"
  24 +       default n
  25 +       depends on MMC_MTK
  26 +       help
  27 +         Enable this option to allow verbose error log being displayed for
  28 +         debugging.
  29 +
  30  endif
  31
  32  config FSL_SDHC_V2_3
  33 --- a/drivers/mmc/Makefile
  34 +++ b/drivers/mmc/Makefile
  35 @@ -83,3 +83,7 @@ obj-$(CONFIG_RENESAS_SDHI)            += tmio-comm
  36  obj-$(CONFIG_MMC_BCM2835)              += bcm2835_sdhost.o
  37  obj-$(CONFIG_MMC_MTK)                  += mtk-sd.o
  38  obj-$(CONFIG_MMC_SDHCI_F_SDH30)                += f_sdh30.o
  39 +
  40 +ifdef CONFIG_MMC_MTK_DEBUG
  41 +CFLAGS_mtk-sd.o += -DDEBUG
  42 +endif
  43 --- a/drivers/mmc/mtk-sd.c
  44 +++ b/drivers/mmc/mtk-sd.c
  45 @@ -779,18 +779,24 @@ static int msdc_ops_send_cmd(struct udev
  46         if (cmd_ret &&
  47             !(cmd_ret == -EIO &&
  48             (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK ||
  49 -           cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200)))
  50 +           cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200))) {
  51 +               dev_dbg(dev, "MSDC start command failure with %d, cmd=%d, arg=0x%x\n",
  52 +                       cmd_ret, cmd->cmdidx, cmd->cmdarg);
  53                 return cmd_ret;
  54 -
  55 -       if (data) {
  56 -               data_ret = msdc_start_data(host, data);
  57 -               if (cmd_ret)
  58 -                       return cmd_ret;
  59 -               else
  60 -                       return data_ret;
  61         }
  62
  63 -       return 0;
  64 +       if (!data)
  65 +               return cmd_ret;
  66 +
  67 +       data_ret = msdc_start_data(host, data);
  68 +       if (cmd_ret)
  69 +               return cmd_ret;
  70 +
  71 +       if (data_ret)
  72 +               dev_dbg(dev, "MSDC start data failure with %d, cmd=%d, arg=0x%x\n",
  73 +                       data_ret, cmd->cmdidx, cmd->cmdarg);
  74 +
  75 +       return data_ret;
  76  }
  77
  78  static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks)