Revision a81bfdf8bf5396824d7d139560180854cb599b06 authored by Linus Torvalds on 12 February 2021, 19:29:06 UTC, committed by Linus Torvalds on 12 February 2021, 19:29:06 UTC
Pull drm fixes from Dave Airlie: "Regular fixes for final, there is a ttm regression fix, dp-mst fix, one amdgpu revert, two i915 fixes, and some misc fixes for sun4i, xlnx, and vc4. All pretty quiet and don't think we have any known outstanding regressions. ttm: - page pool regression fix. dp_mst: - don't report un-attached ports as connected amdgpu: - blank screen fix i915: - ensure Type-C FIA is powered when initializing - fix overlay frontbuffer tracking sun4i: - tcon1 sync polarity fix - always set HDMI clock rate - fix H6 HDMI PHY config - fix H6 max frequency vc4: - fix buffer overflow xlnx: - fix memory leak" * tag 'drm-fixes-2021-02-12' of git://anongit.freedesktop.org/drm/drm: drm/ttm: make sure pool pages are cleared drm/sun4i: dw-hdmi: Fix max. frequency for H6 drm/sun4i: Fix H6 HDMI PHY configuration drm/sun4i: dw-hdmi: always set clock rate drm/sun4i: tcon: set sync polarity for tcon1 channel drm/i915: Fix overlay frontbuffer tracking Revert "drm/amd/display: Update NV1x SR latency values" drm/i915/tgl+: Make sure TypeC FIA is powered up when initializing it drm/dp_mst: Don't report ports connected if nothing is attached to them drm/xlnx: fix kmemleak by sending vblank_event in atomic_disable drm/vc4: hvs: Fix buffer overflow with the dlist handling
driver_chipcommon_b.c
/*
* Broadcom specific AMBA
* ChipCommon B Unit driver
*
* Copyright 2014, Hauke Mehrtens <hauke@hauke-m.de>
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include "bcma_private.h"
#include <linux/export.h>
#include <linux/bcma/bcma.h>
static bool bcma_wait_reg(struct bcma_bus *bus, void __iomem *addr, u32 mask,
u32 value, int timeout)
{
unsigned long deadline = jiffies + timeout;
u32 val;
do {
val = readl(addr);
if ((val & mask) == value)
return true;
cpu_relax();
udelay(10);
} while (!time_after_eq(jiffies, deadline));
bcma_err(bus, "Timeout waiting for register %p\n", addr);
return false;
}
void bcma_chipco_b_mii_write(struct bcma_drv_cc_b *ccb, u32 offset, u32 value)
{
struct bcma_bus *bus = ccb->core->bus;
void __iomem *mii = ccb->mii;
writel(offset, mii + BCMA_CCB_MII_MNG_CTL);
bcma_wait_reg(bus, mii + BCMA_CCB_MII_MNG_CTL, 0x0100, 0x0000, 100);
writel(value, mii + BCMA_CCB_MII_MNG_CMD_DATA);
bcma_wait_reg(bus, mii + BCMA_CCB_MII_MNG_CTL, 0x0100, 0x0000, 100);
}
EXPORT_SYMBOL_GPL(bcma_chipco_b_mii_write);
int bcma_core_chipcommon_b_init(struct bcma_drv_cc_b *ccb)
{
if (ccb->setup_done)
return 0;
ccb->setup_done = 1;
ccb->mii = ioremap(ccb->core->addr_s[1], BCMA_CORE_SIZE);
if (!ccb->mii)
return -ENOMEM;
return 0;
}
void bcma_core_chipcommon_b_free(struct bcma_drv_cc_b *ccb)
{
if (ccb->mii)
iounmap(ccb->mii);
}
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