Commit 68c70aae authored by Wolfram Sang's avatar Wolfram Sang Committed by Daniel Lezcano
Browse files

clocksource/drivers/sh_cmt: Don't use CMTOUT_IE with R-Car Gen2/3 



CMTOUT_IE is only supported for older SoCs. Newer SoCs shall not set
this bit. So, add a version check.

Reported-by: default avatarPhong Hoang <phong.hoang.wz@renesas.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210309094448.31823-1-wsa+renesas@sang-engineering.com
parent a47d7ef4

drivers/clocksource/sh_cmt.c

+3 −2
Original line number Diff line number Diff line
@@ -339,8 +339,9 @@ static int sh_cmt_enable(struct sh_cmt_channel *ch) 
		sh_cmt_write_cmcsr(ch, SH_CMT16_CMCSR_CMIE |

				   SH_CMT16_CMCSR_CKS512);

	} else {

		sh_cmt_write_cmcsr(ch, SH_CMT32_CMCSR_CMM |

				   SH_CMT32_CMCSR_CMTOUT_IE |

		u32 cmtout = ch->cmt->info->model <= SH_CMT_48BIT ?

			      SH_CMT32_CMCSR_CMTOUT_IE : 0;

		sh_cmt_write_cmcsr(ch, cmtout | SH_CMT32_CMCSR_CMM |

				   SH_CMT32_CMCSR_CMR_IRQ |

				   SH_CMT32_CMCSR_CKS_RCLK8);

	}