Make use of arch_nvram_ops in the thinkpad_acpi driver so that the
nvram_* function exports can be removed.

Signed-off-by: Finn Thain <fth...@telegraphics.com.au>
Acked-by: Henrique de Moraes Holschuh <h...@hmh.eng.br>
Reviewed-by: Darren Hart <dvh...@linux.intel.com>
---
I've tested this on a ThinkPad T43.
---
 drivers/platform/x86/thinkpad_acpi.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c 
b/drivers/platform/x86/thinkpad_acpi.c
index fde08a997557..fbbf7b452e51 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2435,30 +2435,30 @@ static void hotkey_read_nvram(struct tp_nvram_state *n, 
const u32 m)
        u8 d;
 
        if (m & TP_NVRAM_HKEY_GROUP_HK2) {
-               d = nvram_read_byte(TP_NVRAM_ADDR_HK2);
+               d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_HK2);
                n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD);
                n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM);
                n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY);
                n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE);
        }
        if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) {
-               d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT);
+               d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_THINKLIGHT);
                n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT);
        }
        if (m & TP_ACPI_HKEY_DISPXPAND_MASK) {
-               d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO);
+               d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_VIDEO);
                n->displayexp_toggle =
                                !!(d & TP_NVRAM_MASK_HKT_DISPEXPND);
        }
        if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) {
-               d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
+               d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
                n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
                                >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
                n->brightness_toggle =
                                !!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS);
        }
        if (m & TP_NVRAM_HKEY_GROUP_VOLUME) {
-               d = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
+               d = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_MIXER);
                n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME)
                                >> TP_NVRAM_POS_LEVEL_VOLUME;
                n->mute = !!(d & TP_NVRAM_MASK_MUTE);
@@ -6605,7 +6605,7 @@ static unsigned int tpacpi_brightness_nvram_get(void)
 {
        u8 lnvram;
 
-       lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
+       lnvram = (arch_nvram_ops.read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
                  & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
                  >> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
        lnvram &= bright_maxlvl;
@@ -6630,7 +6630,7 @@ static void tpacpi_brightness_checkpoint_nvram(void)
        if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
                goto unlock;
        lec &= TP_EC_BACKLIGHT_LVLMSK;
-       b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
+       b_nvram = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
 
        if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
                             >> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) {
@@ -6638,7 +6638,7 @@ static void tpacpi_brightness_checkpoint_nvram(void)
                b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS <<
                                TP_NVRAM_POS_LEVEL_BRIGHTNESS);
                b_nvram |= lec;
-               nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS);
+               arch_nvram_ops.write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS);
                dbg_printk(TPACPI_DBG_BRGHT,
                           "updated NVRAM backlight level to %u (0x%02x)\n",
                           (unsigned int) lec, (unsigned int) b_nvram);
@@ -7236,13 +7236,13 @@ static void tpacpi_volume_checkpoint_nvram(void)
        if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec)))
                goto unlock;
        lec &= ec_mask;
-       b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
+       b_nvram = arch_nvram_ops.read_byte(TP_NVRAM_ADDR_MIXER);
 
        if (lec != (b_nvram & ec_mask)) {
                /* NVRAM needs update */
                b_nvram &= ~ec_mask;
                b_nvram |= lec;
-               nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER);
+               arch_nvram_ops.write_byte(b_nvram, TP_NVRAM_ADDR_MIXER);
                dbg_printk(TPACPI_DBG_MIXER,
                           "updated NVRAM mixer status to 0x%02x (0x%02x)\n",
                           (unsigned int) lec, (unsigned int) b_nvram);
-- 
2.19.2

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