diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.10/0023-Add-module-parameter-for-missing_status-quirk.-sdhci.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-3.10/0023-Add-module-parameter-for-missing_status-quirk.-sdhci.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.10/0023-Add-module-parameter-for-missing_status-quirk.-sdhci.patch b/target/linux/brcm2708/patches-3.10/0023-Add-module-parameter-for-missing_status-quirk.-sdhci.patch new file mode 100644 index 0000000000..8097f6d103 --- /dev/null +++ b/target/linux/brcm2708/patches-3.10/0023-Add-module-parameter-for-missing_status-quirk.-sdhci.patch @@ -0,0 +1,53 @@ +From 4548721c4c1b160a8b5702b6226c5b6403b3df8b Mon Sep 17 00:00:00 2001 +From: popcornmix <popcornmix@gmail.com> +Date: Wed, 1 Aug 2012 19:02:14 +0100 +Subject: [PATCH 023/174] Add module parameter for missing_status quirk. + sdhci-bcm2708.missing_status=0 may improve interrupt latency + +--- + drivers/mmc/host/sdhci-bcm2708.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +--- a/drivers/mmc/host/sdhci-bcm2708.c ++++ b/drivers/mmc/host/sdhci-bcm2708.c +@@ -134,6 +134,7 @@ static inline unsigned long int since_ns + static bool allow_highspeed = 1; + static int emmc_clock_freq = BCM2708_EMMC_CLOCK_FREQ; + static bool sync_after_dma = 1; ++static bool missing_status = 1; + + #if 0 + static void hptime_test(void) +@@ -1150,7 +1151,6 @@ static struct sdhci_ops sdhci_bcm2708_op + .spurious_crc_acmd51 = sdhci_bcm2708_quirk_spurious_crc, + .voltage_broken = sdhci_bcm2708_quirk_voltage_broken, + .uhs_broken = sdhci_bcm2708_uhs_broken, +- .missing_status = sdhci_bcm2708_missing_status, + }; + + /*****************************************************************************\ +@@ -1189,6 +1189,9 @@ static int sdhci_bcm2708_probe(struct pl + ret = PTR_ERR(host); + goto err; + } ++ if (missing_status) { ++ sdhci_bcm2708_ops.missing_status = sdhci_bcm2708_missing_status; ++ } + + host->hw_name = "BCM2708_Arasan"; + host->ops = &sdhci_bcm2708_ops; +@@ -1380,6 +1383,7 @@ module_exit(sdhci_drv_exit); + module_param(allow_highspeed, bool, 0444); + module_param(emmc_clock_freq, int, 0444); + module_param(sync_after_dma, bool, 0444); ++module_param(missing_status, bool, 0444); + + MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver"); + MODULE_AUTHOR("Broadcom <info@broadcom.com>"); +@@ -1389,5 +1393,6 @@ MODULE_ALIAS("platform:"DRIVER_NAME); + MODULE_PARM_DESC(allow_highspeed, "Allow high speed transfers modes"); + MODULE_PARM_DESC(emmc_clock_freq, "Specify the speed of emmc clock"); + MODULE_PARM_DESC(sync_after_dma, "Block in driver until dma complete"); ++MODULE_PARM_DESC(missing_status, "Use the missing status quirk"); + + |