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f5919b65d4
Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From c03a6b0585e7c469c199d349405b3967bcf18672 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 22 Jan 2018 12:17:27 +0000
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Subject: [PATCH 166/454] mmc: bcm2835-sdhost: Support underclocking
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Support underclocking of the SD bus in two ways:
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1. using the max-frequency DT property (which currently has no DT
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parameter), and
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2. using the exiting sd_overclock parameter.
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The two methods differ slightly - in the former the MMC subsystem is
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aware of the underclocking, while in the latter it isn't - but the
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end results should be the same.
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See: https://github.com/raspberrypi/linux/issues/2350
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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drivers/mmc/host/bcm2835-sdhost.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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--- a/drivers/mmc/host/bcm2835-sdhost.c
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+++ b/drivers/mmc/host/bcm2835-sdhost.c
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@@ -1519,8 +1519,7 @@ void bcm2835_sdhost_set_clock(struct bcm
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if (host->debug)
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pr_info("%s: set_clock(%d)\n", mmc_hostname(host->mmc), clock);
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- if ((host->overclock_50 > 50) &&
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- (clock == 50*MHZ))
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+ if (host->overclock_50 && (clock == 50*MHZ))
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clock = host->overclock_50 * MHZ + (MHZ - 1);
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/* The SDCDIV register has 11 bits, and holds (div - 2).
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@@ -1894,7 +1893,8 @@ int bcm2835_sdhost_add_host(struct bcm28
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mmc = host->mmc;
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- mmc->f_max = host->max_clk;
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+ if (!mmc->f_max || mmc->f_max > host->max_clk)
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+ mmc->f_max = host->max_clk;
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mmc->f_min = host->max_clk / SDCDIV_MAX_CDIV;
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mmc->max_busy_timeout = (~(unsigned int)0)/(mmc->f_max/1000);
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