linux.git/drivers/soc/litex, branch v5.11 Linux kernel source tree soc: litex: Properly depend on HAS_IOMEM 2021-01-29T21:36:10+00:00 David Gow davidgow@google.com 2021-01-27T03:36:04+00:00 1bea2a937dadd188de70198b0cf3915e05a506e4 The LiteX SOC controller driver makes use of IOMEM functions like devm_platform_ioremap_resource(), which are only available if CONFIG_HAS_IOMEM is defined. This causes the driver to be enable under make ARCH=um allyesconfig, even though it won't build. By adding a dependency on HAS_IOMEM, the driver will not be enabled on architectures which don't support it. Fixes: 22447a99c97e ("drivers/soc/litex: add LiteX SoC Controller driver") Signed-off-by: David Gow <davidgow@google.com> [shorne@gmail.com: Fix typo in commit message pointed out in review] Signed-off-by: Stafford Horne <shorne@gmail.com> 
The LiteX SOC controller driver makes use of IOMEM functions like
devm_platform_ioremap_resource(), which are only available if
CONFIG_HAS_IOMEM is defined.

This causes the driver to be enable under make ARCH=um allyesconfig,
even though it won't build.

By adding a dependency on HAS_IOMEM, the driver will not be enabled on
architectures which don't support it.

Fixes: 22447a99c97e ("drivers/soc/litex: add LiteX SoC Controller driver")
Signed-off-by: David Gow <davidgow@google.com>
[shorne@gmail.com: Fix typo in commit message pointed out in review]
Signed-off-by: Stafford Horne <shorne@gmail.com>
soc: litex: Fix compile warning when device tree is not configured 2021-01-14T00:34:00+00:00 Stafford Horne shorne@gmail.com 2021-01-12T12:29:24+00:00 e6dc077b7dffdc01d9c45a5a1f4caf1e51c756a3 The test robot reported: drivers/soc/litex/litex_soc_ctrl.c:143:34: warning: unused variable 'litex_soc_ctrl_of_match' [-Wunused-const-variable] static const struct of_device_id litex_soc_ctrl_of_match[] = { ^ 1 warning generated. As per the random config device tree is not configured causing the litex_soc_ctrl_of_match match list to not be used. This would usually mean that we cannot even use this driver as it depends on device tree, but as we also have COMPILE_TEST configured we allow it. Fix the warning by surrounding the unused variable with an ifdef CONFIG_OF. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Stafford Horne <shorne@gmail.com> 
The test robot reported:

   drivers/soc/litex/litex_soc_ctrl.c:143:34: warning: unused variable 'litex_soc_ctrl_of_match' [-Wunused-const-variable]
   static const struct of_device_id litex_soc_ctrl_of_match[] = {
                                    ^
   1 warning generated.

As per the random config device tree is not configured causing the
litex_soc_ctrl_of_match match list to not be used.  This would usually
mean that we cannot even use this driver as it depends on device tree,
but as we also have COMPILE_TEST configured we allow it.

Fix the warning by surrounding the unused variable with an ifdef
CONFIG_OF.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
drivers/soc/litex: add LiteX SoC Controller driver 2020-11-09T12:07:00+00:00 Pawel Czarnecki pczarnecki@internships.antmicro.com 2020-10-13T14:45:52+00:00 22447a99c97e353bde8f90c2353873f27681d57c This commit adds driver for the FPGA-based LiteX SoC Controller from LiteX SoC builder. Co-developed-by: Mateusz Holenko <mholenko@antmicro.com> Signed-off-by: Mateusz Holenko <mholenko@antmicro.com> Signed-off-by: Pawel Czarnecki <pczarnecki@internships.antmicro.com> Signed-off-by: Stafford Horne <shorne@gmail.com> 
This commit adds driver for the FPGA-based LiteX SoC
Controller from LiteX SoC builder.

Co-developed-by: Mateusz Holenko <mholenko@antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
Signed-off-by: Pawel Czarnecki <pczarnecki@internships.antmicro.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>