From: Keith Packard <keithp@keithp.com>
Date: Sat, 27 Jan 2024 23:30:27 +0000 (-0800)
Subject: altos: Bump ST7565 speed to 20MHz
X-Git-Tag: 1.9.18~2^2~37
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=3687628cdd964a5e6729b8c9506efa5e2e9d8a84

altos: Bump ST7565 speed to 20MHz

Go as fast as we can manage

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/src/drivers/ao_st7565.h b/src/drivers/ao_st7565.h
index 1dad97cc..b5627f3b 100644
--- a/src/drivers/ao_st7565.h
+++ b/src/drivers/ao_st7565.h
@@ -81,7 +81,8 @@
 #define ST7565_BOOSTER_RATIO_SET		0xf8
 #define ST7565_NOP				0xe3
 
-#define AO_ST7565_SPI_SPEED			ao_spi_speed(AO_ST7565_SPI_BUS, 10000000)
+/* Max 50ns SPI clock time */
+#define AO_ST7565_SPI_SPEED			ao_spi_speed(AO_ST7565_SPI_BUS, 20000000)
 
 void
 ao_st7565_update(struct ao_bitmap *bitmap);