drm/xe/gt_clock: Convert register access to use xe_mmio

Stop using GT pointers for register access.

Reviewed-by: Rodrigo Vivi <[e-mail]>
Signed-off-by: Matt Roper <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/xe/xe_gt_clock.c

···
 
 static u32 read_reference_ts_freq(struct xe_gt *gt)
 {
-	u32 ts_override = xe_mmio_read32(gt, TIMESTAMP_OVERRIDE);
+	u32 ts_override = xe_mmio_read32(&gt->mmio, TIMESTAMP_OVERRIDE);
 	u32 base_freq, frac_freq;
 
 	base_freq = REG_FIELD_GET(TIMESTAMP_OVERRIDE_US_COUNTER_DIVIDER_MASK,
···
 
 int xe_gt_clock_init(struct xe_gt *gt)
 {
-	u32 ctc_reg = xe_mmio_read32(gt, CTC_MODE);
+	u32 ctc_reg = xe_mmio_read32(&gt->mmio, CTC_MODE);
 	u32 freq = 0;
 
 	/* Assuming gen11+ so assert this assumption is correct */
···
 	if (ctc_reg & CTC_SOURCE_DIVIDE_LOGIC) {
 		freq = read_reference_ts_freq(gt);
 	} else {
-		u32 c0 = xe_mmio_read32(gt, RPM_CONFIG0);
+		u32 c0 = xe_mmio_read32(&gt->mmio, RPM_CONFIG0);
 
 		freq = get_crystal_clock_freq(c0);