# git rev-parse -q --verify 6aa254f8d119df235963fd718d145317512963ac^{commit}
6aa254f8d119df235963fd718d145317512963ac
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6aa254f8d119df235963fd718d145317512963ac
# git clean -qxdf
# < git log -1
# commit 6aa254f8d119df235963fd718d145317512963ac
# Author: Cédric Le Goater <clg@kaod.org>
# Date:   Fri Oct 4 13:24:36 2019 +0200
# 
#     mtd: spi-nor: aspeed: Add read training support for the AST2600
#     
#     The read training algorithm consists of finding the appropriate read
#     timing delays for the HCLK dividers in range [ 2 - 5 ] and store the
#     results in the Read Timing Compensation register. The previous AST2500
#     and AST2400 SoCs were covering a broader HCLK range [ 1 - 5 ] because
#     the AHB frequency was lower.
#     
#     The algorithm first reads a golden buffer at low speed and then
#     performs reads with different clocks and delay cycle settings to find
#     a breaking point. This selects the default clock frequency for the CEx
#     control register. The current settings are bit optimistic as we pick
#     the first delay giving good results. A safer approach would be to
#     determine an interval and choose the middle value. We might change the
#     approach depending on the results on other systems.
#     
#     Signed-off-by: Cédric Le Goater <clg@kaod.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 6aa254f8d119df235963fd718d145317512963ac
# < make -s -j 80 ARCH=arm O=/kisskb/build/cdrx_multi_v7_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  multi_v7_defconfig
arch/arm/configs/multi_v7_defconfig:936:warning: symbol value 'm' invalid for REMOTEPROC
# make -s -j 80 ARCH=arm O=/kisskb/build/cdrx_multi_v7_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr':
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
   pd->msg->buf[real_pos] = data;
                          ^
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here
  unsigned char data;
                ^
/kisskb/src/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c: In function 'sun6i_dsi_encoder_enable':
/kisskb/src/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:721:8: warning: missing braces around initializer [-Wmissing-braces]
  union phy_configure_opts opts = { 0 };
        ^
/kisskb/src/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:721:8: warning: (near initialization for 'opts.mipi_dphy') [-Wmissing-braces]
WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL
WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL
Completed OK
# rm -rf /kisskb/build/cdrx_multi_v7_defconfig_arm-gcc4.9
# Build took: 0:03:02.439838