target/linux/mediatek/patches-4.4/0076-mtd-nand-add-power-domains-to-the-mediatek-driver.patch

   1 From 5dc0d474396e04e6c140d71f0e113eb1c03501c5 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <john@phrozen.org>
   3 Date: Tue, 17 May 2016 05:44:10 +0200
   4 Subject: [PATCH 076/102] mtd: nand: add power domains to the mediatek driver
   5
   6 Signed-off-by: John Crispin <john@phrozen.org>
   7 ---
   8  drivers/mtd/nand/mtk_nand.c |   13 ++++++++++++-
   9  1 file changed, 12 insertions(+), 1 deletion(-)
  10
  11 --- a/drivers/mtd/nand/mtk_nand.c
  12 +++ b/drivers/mtd/nand/mtk_nand.c
  13 @@ -16,6 +16,7 @@
  14
  15  #include <linux/platform_device.h>
  16  #include <linux/dma-mapping.h>
  17 +#include <linux/pm_runtime.h>
  18  #include <linux/interrupt.h>
  19  #include <linux/delay.h>
  20  #include <linux/clk.h>
  21 @@ -102,6 +103,7 @@
  22  #define NFI_MASTER_STA         (0x224)
  23  #define                MASTER_STA_MASK         (0x0FFF)
  24  #define NFI_EMPTY_THRESH       (0x23C)
  25 +#define NFI_ACCCON1            (0x244)
  26
  27  #define MTK_NAME               "mtk-nand"
  28  #define KB(x)                  ((x) * 1024UL)
  29 @@ -539,6 +541,8 @@ static void mtk_nfc_bad_mark_swap(struct
  30         struct mtk_nfc_nand_chip *nand = to_mtk_nand(chip);
  31         u32 bad_pos = nand->bad_mark.pos;
  32
  33 +       return;
  34 +
  35         if (raw)
  36                 bad_pos += nand->bad_mark.sec * mtk_data_len(chip);
  37         else
  38 @@ -946,7 +950,8 @@ static int mtk_nfc_read_oob_std(struct m
  39
  40  static inline void mtk_nfc_hw_init(struct mtk_nfc *nfc)
  41  {
  42 -       nfi_writel(nfc, 0x10804211, NFI_ACCCON);
  43 +       nfi_writel(nfc, 0x30c77fff, NFI_ACCCON);
  44 +       nfi_writel(nfc, 0xC03222, NFI_ACCCON1);
  45         nfi_writew(nfc, 0xf1, NFI_CNRNB);
  46         nfi_writew(nfc, PAGEFMT_8K_16K, NFI_PAGEFMT);
  47
  48 @@ -1328,6 +1333,9 @@ static int mtk_nfc_probe(struct platform
  49                 goto clk_disable;
  50         }
  51
  52 +       pm_runtime_enable(dev);
  53 +       pm_runtime_get_sync(dev);
  54 +
  55         platform_set_drvdata(pdev, nfc);
  56
  57         ret = mtk_nfc_nand_chips_init(dev, nfc);
  58 @@ -1362,6 +1370,9 @@ static int mtk_nfc_remove(struct platfor
  59         mtk_ecc_release(nfc->ecc);
  60         mtk_nfc_disable_clk(&nfc->clk);
  61
  62 +       pm_runtime_put_sync(&pdev->dev);
  63 +       pm_runtime_disable(&pdev->dev);
  64 +
  65         return 0;
  66  }
  67