R21                36 drivers/media/i2c/wm8775.c 	R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R23 = 23,
R21              1421 drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c #define R21 193
R21                26 tools/perf/arch/powerpc/tests/regs_load.S #define R21	21 * 8
R21                17 tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h #define R21 r21
R21                22 tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h #define R21 r21