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mfd: intel-lpss: Use writeq() helper

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There are already helper functions to do 64-bit I/O on 32-bit machines, thus we
don't need to reinvent the wheel. In our case we can't use readq() / writeq()
even on 64-bit kernel since there is a hardware limitation (OCP bus is a 32-bit
bus).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Andy Shevchenko 2015-09-14 11:32:48 +03:00 committed by Lee Jones
parent 327cc18e76
commit 689d4453ed
1 changed files with 4 additions and 8 deletions
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12
drivers/mfd/intel-lpss.c
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@ -26,6 +26,8 @@
#include <linux/pm_runtime.h>
#include <linux/seq_file.h>
#include <asm-generic/io-64-nonatomic-lo-hi.h>
#include "intel-lpss.h"
#define LPSS_DEV_OFFSET 0x000
@ -52,8 +54,7 @@
#define LPSS_PRIV_SSP_REG 0x20
#define LPSS_PRIV_SSP_REG_DIS_DMA_FIN BIT(0)
#define LPSS_PRIV_REMAP_ADDR_LO 0x40
#define LPSS_PRIV_REMAP_ADDR_HI 0x44
#define LPSS_PRIV_REMAP_ADDR 0x40
#define LPSS_PRIV_CAPS 0xfc
#define LPSS_PRIV_CAPS_NO_IDMA BIT(8)
@ -250,12 +251,7 @@ static void intel_lpss_set_remap_addr(const struct intel_lpss *lpss)
{
resource_size_t addr = lpss->info->mem->start;
writel(addr, lpss->priv + LPSS_PRIV_REMAP_ADDR_LO);
#if BITS_PER_LONG > 32
writel(addr >> 32, lpss->priv + LPSS_PRIV_REMAP_ADDR_HI);
#else
writel(0, lpss->priv + LPSS_PRIV_REMAP_ADDR_HI);
#endif
lo_hi_writeq(addr, lpss->priv + LPSS_PRIV_REMAP_ADDR);
}
static void intel_lpss_deassert_reset(const struct intel_lpss *lpss)