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6918ea2484
Update the 3.10 rasperry patches by rebasing raspberry/rpi-3.10-y against linux-stable/v3.10.49. Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 42678
59 lines
2.2 KiB
Diff
59 lines
2.2 KiB
Diff
From 9572b1f23fb60dc2c55bde196a7070f57fc20a92 Mon Sep 17 00:00:00 2001
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From: popcornmix <popcornmix@gmail.com>
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Date: Wed, 1 Aug 2012 19:02:14 +0100
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Subject: [PATCH 023/196] Add module parameter for missing_status quirk.
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sdhci-bcm2708.missing_status=0 may improve interrupt latency
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---
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drivers/mmc/host/sdhci-bcm2708.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c
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index c6d6bb0..8243593 100644
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--- a/drivers/mmc/host/sdhci-bcm2708.c
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+++ b/drivers/mmc/host/sdhci-bcm2708.c
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@@ -134,6 +134,7 @@ static inline unsigned long int since_ns(hptime_t t)
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static bool allow_highspeed = 1;
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static int emmc_clock_freq = BCM2708_EMMC_CLOCK_FREQ;
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static bool sync_after_dma = 1;
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+static bool missing_status = 1;
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#if 0
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static void hptime_test(void)
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@@ -1150,7 +1151,6 @@ static struct sdhci_ops sdhci_bcm2708_ops = {
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.spurious_crc_acmd51 = sdhci_bcm2708_quirk_spurious_crc,
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.voltage_broken = sdhci_bcm2708_quirk_voltage_broken,
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.uhs_broken = sdhci_bcm2708_uhs_broken,
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- .missing_status = sdhci_bcm2708_missing_status,
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};
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/*****************************************************************************\
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@@ -1189,6 +1189,9 @@ static int sdhci_bcm2708_probe(struct platform_device *pdev)
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ret = PTR_ERR(host);
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goto err;
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}
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+ if (missing_status) {
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+ sdhci_bcm2708_ops.missing_status = sdhci_bcm2708_missing_status;
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+ }
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host->hw_name = "BCM2708_Arasan";
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host->ops = &sdhci_bcm2708_ops;
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@@ -1380,6 +1383,7 @@ module_exit(sdhci_drv_exit);
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module_param(allow_highspeed, bool, 0444);
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module_param(emmc_clock_freq, int, 0444);
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module_param(sync_after_dma, bool, 0444);
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+module_param(missing_status, bool, 0444);
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MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver");
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MODULE_AUTHOR("Broadcom <info@broadcom.com>");
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@@ -1389,5 +1393,6 @@ MODULE_ALIAS("platform:"DRIVER_NAME);
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MODULE_PARM_DESC(allow_highspeed, "Allow high speed transfers modes");
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MODULE_PARM_DESC(emmc_clock_freq, "Specify the speed of emmc clock");
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MODULE_PARM_DESC(sync_after_dma, "Block in driver until dma complete");
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+MODULE_PARM_DESC(missing_status, "Use the missing status quirk");
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--
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1.9.1
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