[PATCH] phy: mediatek: Avoid floating point constants

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

When building with old versions of GCC (6.3 in this case), the compiler
stumbles over the floating point constants in this driver:

	drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c: In function ‘mtk_hdmi_pll_prepare’:
	drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c:331:23: error: ‘-mgeneral-regs-only’ is incompatible with floating-point code
	  } else if (pixel_clk >= 74.175 * MEGA && pixel_clk <= 300 * MEGA) {

	drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c:361:12: error: ‘-mgeneral-regs-only’ is incompatible with floating-point code
	 static int mtk_hdmi_pll_prepare(struct clk_hw *hw)
		    ^~~~~~~~~~~~~~~~~~~~
	drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c:361:12: error: ‘-mgeneral-regs-only’ is incompatible with floating-point code

Fix this by switching to the KILO macro instead and multiplying the
constants by 1000 to get rid of the floating point.

Fixes: 45810d486bb4 ("phy: mediatek: add support for phy-mtk-hdmi-mt8195")
Reported-by: Jonathan Hunter <jonathanh at nvidia.com>
Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
index abfc077fb0a8..b10af26cad2f 100644
--- a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
+++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
@@ -239,9 +239,9 @@ static int mtk_hdmi_pll_calc(struct mtk_hdmi_phy *hdmi_phy, struct clk_hw *hw,
 		txposdiv = 8;
 	else if (tmds_clk >= 54 * MEGA && tmds_clk < 148.35 * MEGA)
 		txposdiv = 4;
-	else if (tmds_clk >= 148.35 * MEGA && tmds_clk < 296.7 * MEGA)
+	else if (tmds_clk >= 148350 * KILO && tmds_clk < 296700 * KILO)
 		txposdiv = 2;
-	else if (tmds_clk >= 296.7 * MEGA && tmds_clk <= 594 * MEGA)
+	else if (tmds_clk >= 296700 * KILO && tmds_clk <= 594 * MEGA)
 		txposdiv = 1;
 	else
 		return -EINVAL;
@@ -328,12 +328,12 @@ static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
 		clk_channel_bias = 0x34; /* 20mA */
 		impedance_en = 0xf;
 		impedance = 0x36; /* 100ohm */
-	} else if (pixel_clk >= 74.175 * MEGA && pixel_clk <= 300 * MEGA) {
+	} else if (pixel_clk >= 74175 * KILO && pixel_clk <= 300 * MEGA) {
 		data_channel_bias = 0x34; /* 20mA */
 		clk_channel_bias = 0x2c; /* 16mA */
 		impedance_en = 0xf;
 		impedance = 0x36; /* 100ohm */
-	} else if (pixel_clk >= 27 * MEGA && pixel_clk < 74.175 * MEGA) {
+	} else if (pixel_clk >= 27 * MEGA && pixel_clk < 74175 * KILO) {
 		data_channel_bias = 0x14; /* 10mA */
 		clk_channel_bias = 0x14; /* 10mA */
 		impedance_en = 0x0;
-- 
2.40.0