diff options
Diffstat (limited to 'target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch')
| -rw-r--r-- | target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch b/target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch new file mode 100644 index 0000000..b199fcf --- /dev/null +++ b/target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch @@ -0,0 +1,66 @@ +From 49ff5bd7d4d51a8eb05796f130e9a1a96d18f522 Mon Sep 17 00:00:00 2001 +From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Date: Wed, 17 Apr 2013 13:38:14 -0300 +Subject: [PATCH 106/203] mtd: nand: pxa3xx: Move buffer release code to its + own function + +Create a function to release the buffer and the dma channel, thus undoing +what pxa3xx_nand_init_buff() did. This commit makes the code more readable +and will allow to handle non-DMA capable platforms easier. + +Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> +Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> +Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> +--- + drivers/mtd/nand/pxa3xx_nand.c | 26 ++++++++++++++------------ + 1 file changed, 14 insertions(+), 12 deletions(-) + +--- a/drivers/mtd/nand/pxa3xx_nand.c ++++ b/drivers/mtd/nand/pxa3xx_nand.c +@@ -912,6 +912,18 @@ static int pxa3xx_nand_init_buff(struct + return 0; + } + ++static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info) ++{ ++ struct platform_device *pdev = info->pdev; ++ if (use_dma) { ++ pxa_free_dma(info->data_dma_ch); ++ dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE, ++ info->data_buff, info->data_buff_phys); ++ } else { ++ kfree(info->data_buff); ++ } ++} ++ + static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info) + { + struct mtd_info *mtd; +@@ -1137,12 +1149,7 @@ static int alloc_nand_resource(struct pl + + fail_free_buf: + free_irq(irq, info); +- if (use_dma) { +- pxa_free_dma(info->data_dma_ch); +- dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE, +- info->data_buff, info->data_buff_phys); +- } else +- kfree(info->data_buff); ++ pxa3xx_nand_free_buff(info); + fail_disable_clk: + clk_disable_unprepare(info->clk); + return ret; +@@ -1163,12 +1170,7 @@ static int pxa3xx_nand_remove(struct pla + irq = platform_get_irq(pdev, 0); + if (irq >= 0) + free_irq(irq, info); +- if (use_dma) { +- pxa_free_dma(info->data_dma_ch); +- dma_free_writecombine(&pdev->dev, MAX_BUFF_SIZE, +- info->data_buff, info->data_buff_phys); +- } else +- kfree(info->data_buff); ++ pxa3xx_nand_free_buff(info); + + clk_disable_unprepare(info->clk); + |