From: Bartlomiej Zolnierkiewicz Date: Mon, 20 Aug 2007 20:42:57 +0000 (+0200) Subject: hpt34x: fix CONFIG_HPT34X_AUTODMA=n handling X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=76e1faa7cfd464fa06a9c2cafd633d643daafeae;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git hpt34x: fix CONFIG_HPT34X_AUTODMA=n handling Programming DMA mode may destroy current PIO mode setting so if CONFIG_HPT34X_AUTODMA=n (the default case) make ide_tune_dma() fail early by disabling all host DMA masks and re-tune PIO mode. This fix doesn't help with the driver being broken but is needed for some other changes. Signed-off-by: Bartlomiej Zolnierkiewicz --- diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c index 19778c5fe711..cb8fe5643d3b 100644 --- a/drivers/ide/pci/hpt34x.c +++ b/drivers/ide/pci/hpt34x.c @@ -89,11 +89,7 @@ static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive) drive->init_speed = 0; if (ide_tune_dma(drive)) -#ifndef CONFIG_HPT34X_AUTODMA return -1; -#else - return 0; -#endif if (ide_use_fast_pio(drive)) hpt34x_tune_drive(drive, 255); @@ -160,9 +156,11 @@ static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif) if (!hwif->dma_base) return; +#ifdef CONFIG_HPT34X_AUTODMA hwif->ultra_mask = 0x07; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; +#endif hwif->ide_dma_check = &hpt34x_config_drive_xfer_rate; if (!noautodma)